16:15 - New GC: 1. Gerrans, 2. Impey, 3. Albasini (same time), 4. Kwiatowski +1, 5. Chavanel +1, 6. Boasson Hagen +3, 7. Froome +3, 8. Porte +3, 9. Roche +9, 10. Kreuziger +10.
16:09 - Result: 1. Orica-GreenEdge 25:56, 2. Omega Phama-Quick Step +1, 3. Sky +3, 4. Saxo-Tinkoff +9, 5. Lotto Belisol +17.
16:06 - Victory for Orica-GreenEdge puts Simon Gerrans into the yellow jersey! Incredible scenes in Nice - after parking the bus on Saturday, the Australian now have back-to-back wins on the Tour, plus the race lead.
25km - RadioShack finish with eight riders but they're 28 seconds down on GreenEdge - the 11th best time today.
16:02 - Just the one team to come home now, the RadioShack outfit of the outgoing yellow jersey Jan Bakelants.
25km - BMC drop Marcus Burghardt just before the 1km to go point and they're not going to be able to do it. They finish with six riders and they're 26 seconds down on Orica-GreenEdge so Evans and Van Garderen will have lost a bit of time to their GC rivals.
25km - Here come Vacansoleil - and it's not bad for the Dutch team, 33 seconds down on the leaders GreenEdge.
15:56 - GreenEdge were riding that TTT without radios too - impressive.
15:54 - Panic for Bakelants! The yellow jersey overcooks a bend and has to go hard on the brakes - that will slow RadioShack down a bit.
13km - BMC are eight seconds down on the target time of OPQS at the split - so it's looking good for Gerrans and GreenEdge.
25km - GREENEDGE DO IT! They cross the line 0.75 seconds ahead of OPQS and Simon Gerrans is the virtual yellow jersey...
15:48 - One kilometre to go for GreenEdge - and they were just 3 seconds down at the split. They have six men left and are looking to put Gerrans in yellow...
15:47 - Cadel Evans is the only rider in BMC who is wearing a red helmet - the others are in black. It's so that if he has any problems, his team car will know straight away that it's him. The Australian is currently on the front taking a pull. He's enjoyed a good season so far, with 3rd in the Giro back in May.
25km - Team Europcar come home with just five riders - Rolland the fifth - and they're 1:12 down on the leading time of OPQS. The polka dot jersey will have a lot of time to make up in the mountains... because he will lose even more time in those two individual time trials later in the race.
15:41 - RadioShack are the most experienced team in the Tour, with 48 starts and 39 Tour finishes betweeen them, although they do have two debutants - Bakelants and Laurent Didier.
15:40 - The last team to start today's TTT is the RadioShack-Leopard team of race leader Jan Bakelants, who is wearing a special yellow skinsuit today. Off they go down the ramp.
13km - Orica GreenEdge are on course: the Australian team are three seconds down on OPQS at the split.
25km - It's a great ride for Saxo-Tinkoff - but it will be no yellow for Nicolas Roche after they come home eight seconds down on OPQS.
15:36 - The BMC team of Cadel Evans and Tejay van Garderen are on the road. They are one of the favourites today and Evans could well be in yellow tonight - especially seeing that the wind is said to have dropped a bit now.
15:35 - Saxo-Tinkoff have eight riders as they hit the Promenade des Anglais for the final 3km. The road has been resurfaced especially for the Tour - it's very smooth.
25km - Movistar were eight seconds down at the split and here they are, all nine of them, on the finish line, and they cross the line 18 seconds down for fifth place. Not bad - and Valvede and Quintana will be well placed on GC.
15:31 - Vacansoleil-DCM have started. Juan Antonio Flecha has been active so far in the race, but both De Gendt and Westra lost more than 17 minutes on stage two.
25km - Astana come home with only five riders and they're 55 seconds down on OPQS. That was a quicker second half, but still a disappointing effort from the Kazakh-based team.
13km - Europcar are having a shocker - they're 30 seconds down at the split and there is no harmony at all, with Voeckler gesticulating and numerous splits appearing in their train.
15:28 - Lampre Merida roll down the ramp - the fourth best team so far on GC, and the most inexperienced on the Tour: they have six riders making their Tour debut this year.
13km - Brilliant ride from Saxo-Tinkoff! They are just 1.6 seconds down on the leaders OPQS at the split, even though they're down to eight men following that crash involving Noval.
25km - Katusha come home 27 seconds down on OPQS and that's not too bad for Joaquim Rodriguez, the Spanish climber, who will not be too much down ahead of the Pyrenees.
15:24 - The Orica-GrenEdge team of yesterday's winner Simon Gerrans are filled of big engines for this kind of discipline and they now on the road.
15:19 - Benjamin Noval is off the back of the Saxo train and he appears to have a bleeding hand so perhaps the Spaniard had a fall.
13km - Astana are having a real shocker - they're 33 seconds down in 11th place at the split, so Fuglsang and Brajkovic will lose a lot of time today...
0km - Sky go close! Just two seconds behind OPQS at the finish - so Edvald Boasson Hagen will not be in yellow. It may be a blessing in disguise - defending the yellow would not be ideal for Froome's team at this early stage of the race...
15:16 - With one kilometre to go, Geraint Thomas peels off the back and calls it a day. He's been a real Trojan today to last so long. But can his team-mates go on and get the win?
15:15 - The Europcar team of polka dot jersey Pierre Rolland have just started their TTT.
25km - Here come Euskaltel - and they are a huge one minute and 23 seconds down on OPQS.
15:12 - Sky still have their full quota of nine riders - which is astonishing given Thomas's broken bone in his pelvis. It will be intersting to see if they improve on the way in, or lose more time like Garmin. They have 5km to go.
25km - Garmin drive to the line but they're going to be short... and it's only the third best time, 16 seconds down on OPQS and just a fraction slower than Lotto. No yellow for David Millar.
15:10 - Now Saxo Bank are on the road, the team of Alberto Contador... They won't win this, but Michael Rogers will add some steel.
15:06 - Movistar won the TTT in the Vuelta last year. Can they do it here? Down the ramp they go...
25km - Fourth best time for Belkin, 37 seconds down on OPQS.
13km - Sky pass through the split 5 seconds down on OPQS, that's one seconds behind Garmin and currently 3rd place.
15:03 - Astana, the boys in baby blue, roll down the ramp...
15:02 - Sky are looking pretty solid in their black skinsuits. Time till tell - quite literally - at the split.
25km - FDJ come home 41 seconds down on OPQS and in fourth place. The current top three is 1. OPQS 25:57, 2. Lotto Belisol +16, 3. Cannondale +33.
13km - Euskaltel are 25 seconds down in 7th place at the split.
13km - First split recap: 1. OPQS, 2. Garmin +4, 3. Lotto +8.
15:00 - Another French wildcard team, Sojasun, are now down the ramp. They will want to limit their losses...
25km - Cofidis approaching the line with six riders. They are one minute 19 second down... which is better than Argos, but not exactly great.
13km - Garmin pass through the split 4.4 seconds down on OPQS and so it's going to be tight for David Millar.
14:56 - Katusha down the ramp - Joaquim Rodriguez won't want to lose too much time today. He's been quiet so far.
13km - Belkin reach the split 16 seconds down on OPQS in 4th place.
14:53 - Dave Brailsford stated the obvious this afternoon before the TTT: "The aim is to go as fast as we can from A to B with the first five riders finishing all together."
14:52 - Here we go - the Sky team of pre-race favourite Chris Froome roll down the ramp. If they win, Edwald Boasson Hagen will be in yellow tonight. But one of their key men, Geraint Thomas, is riding with a fractured bone in the pelvis.
14:50 - Lotto Belisol come home to take second behind OPQS - just 16 seconds in arrears, which isn't bad at all.
14:48 - Cofidis and FDJ have gone through the split in fourth and fifth - only Argos are slower at this point.
14:47 - Euskaltel have just started - this won't be very pleasant for a team more at home in the mountains.
14:47 - Omega Pharma-Quick Step smash the target time to set a new reference of 25:57.
25km - Argos Shimano are the first team across the line to set a target time of 27:43.
14:43 - Garmin-Sharp are on the road. Should they win, David Millar will take the yellow jersey 13 years after his first yellow jersey - that's the longest gap on record in the history of the Tour.
14:42 - Cannondale are only 14 seconds down on Omega Pharma-Quick Step at the 13km point which suggests that Michal Kwiatkowski won't be in yellow tonight.
14:40 - Down the ramp roll the Belkin boys formerly known as Blanco, this year's incarnation of Rabobank. They should put in a decent ride today, but they won't win it.
14:38 - The last five teams off today will be GreenEdge, Lampre, Vacansoleil, BMC and the RadioShack outfit of yellow jersey Jan Bakelants. Sky are off in four teams' time.
14:37 - Lotto Belisol are going well - they've come through the split just 8.8 seconds down on OPQS.
14:36 - The all-in-blue boys of FDJ are next off...
14:33 - Omega Pharma-Quick Step are putting in a monster effort, shaving a huge 58 seconds off Argos at the split. The target time at the half-way point is 13:16.
14:31 - Cofidis are next down the ramp. They have had a torrid Tour, with eight of their nine riders suffering crashes in Corsica. Yohan Bagot pulled out yesterday so they are down to eight.
14:30 - Right from the outset, Cannondale trop Ted King. He went down hard on stage one and he's really struggling to get back on - and it's hardly surprising, he looks to be on a normal bike. There must have been a last-minute mechanical issue with his time trial machine. It's going to be cycling's equivalent of the walk of shame for King down the Promenade des Anglais...
14:28 - It's now the Cannondale team of Peter Sagan who roll down the ramp. Like his team-mates, Sagan is in green - but a slightly different shade of green. This will be a damage limitation exercise for them. Sagan will already be thinking about tomorrow's stage to Marseille - he'll be aching for a win after two second places.
14:23 - The Lotto-Belisol team of Andre Greipel are down the ramp. They're on brand new Ridley bikes which they only got approval for last week. Greipel has had a mixed Tour so far - he has looked good in the intermediate sprints, but looked to have caused the crash that did for so many riders in stage one. He broke his rear derailleur then and couldn't contest the sprint.
14:20 - Omega Pharma-Quick Step are next down the ramp and on paper they should be one of the favourites today. Tony Martin is a machine in these kind of events - but the German crashed badly on Saturday and lost consciousness twice. As for Mark Cavendish, he's suffering from bronchitis. Still, their motivation is simple: win today and Michal Kwiatowski is in yellow.
14:15 - The Argos-Shimano team of sprinters Marcel Kittel and John Degenkolb roll down the ramp to get this team time trial under way.
14:12 - The start and finish of today's course will hug the coast line along the famous Promenade des Anglais, where cross winds will be a factor for the riders. The average speed is expected to be around 55kmh for the winners today and so the top teams should be coming home in under half an hour - so it's a short and sharp task ahead.
14:10 - The first team down the ramp is Argos-Shimano, the team of former race leader and stage one winner Marcel Kittel. They will get this TTT underway at 2.15pm UK time. They will be swiftly followed by the Omega Pharma-Quick Step team of sprinter Mark Cavendish and that man Kwiatkowski, who could well swap his white jersey for yellow after a very solid start to his Tour.
14:08 - With RadioShack unlikely to win today's TTT and 71 riders poised just one second behind Bakelandts, we should see the maillot jersey change hands this afternoon. The likes of Simon Gerrans (GreenEdge), David Millar (Garmin), Michal Kwiatkowski (Omega Pharma-Quick Step), Edvald Boasson Hagen (Sky) and Cadel Evans (BMC) have all been tipped to move to the top of the standings should their team's deliver the goods on the Promenade des Anglais.
14:05 - Pierre Rolland attacked on the final climb of the day on Monday to double his lead at the top of the KOM standings. The Frenchman will wear the polka dot jersey - and perhaps, like yesterday, shorts and helmet too - for a second day.
14:00 - Successive second-place finishes sees Sagan into the green jersey at the expense of Germany's Marcel Kittel, who struggled over the undulating terrain of Corsica for a second day running. Sagan, the defending green jersey champion, is now on 74 points to Kittel's 57. Mark Cavendish, after a troubled start to the race, is in 15th place with just 25 points.
13:55 - Belgian Jan Bakelandts (RadioShack-Leopard) retained his slender one-second lead at the top of the standings to stay in yellow ahead of today's TTT, which is 25km long over a pan-flat course and includes just 10 bends.
13:50 - Yesterday, Orica-GreenEdge turned the tables after their opening day bus fiasco by delivering Simon Gerrans to the line ahead of Slovak second-place sensation Peter Sagan of Cannondale. Gerrans's brilliant sprint following a textbook lead-out by team-mate Daryl Impey gave the Australian his second career win on the Tour - and a first ever Tour scalp for the GreenEdge team.
13:50 - Welcome to live coverage of stage four of the Tour de France - a 25km team time trial in Nice. After three days on the Mediterranean island of Corsica, the remaining 196 riders have returned to mainland France for this critical race against the clock.