The Bryan brothers become the first pair to complete two career Grand Slams after claiming their first French Open title in a decade.
Llodra and Mahut were denied the chance to win in front of their home crowd when being defeated in a tense third-set tie-break.
Llodra was under pressure on his serve from the very first game of the contest at Roland Garros and was broken for 3-2 in the first set, giving the Bryans a lead they would not relinquish.
The French pair took an eventful second set that saw Mahut clatter into a barrier and, after the third set went to a tie-break, appeared to be within touching distance of the victory when going 4-2 up.
But the Bryan brothers drew on their immense experience to claim five points in a row and take the French Open title.
"It's great winning slams with your brother. Just we really wanted to win another French. It's been 10 years. This is the first one we won back in the day and kind of launched our career," said Mike, who is now half way towards completing a calendar Grand Slam.
"This is the toughest slam to win.
"I think 24 Grand Slam finals in 10 years is great. We lost a bunch of them early and we have won a bunch late.
"You never fathom that you're going to hit that many slams and add a gold (from the Olympics) to it. It's just been kind of a fairytale."
Things have certainly changed for the brothers since their last win at Roland Garros.
"I just remember we were sleeping on the floor at the Pierre et Vacances. We were trying to save a buck staying at the junior hotel," recalled Bob, whose bank balance now boasts $10 million in prize money alone.
"The lights, I remember you walk down the hall and it's all like motion sensors, so it would be dark and it could be light and then be dark behind you. It was just kind of a creepy roach motel.
"Now we have the suite at the Claridge."
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