Cesc Fabregas says captain John Terry's decision to leave Chelsea has surprised the dressing room and the players are now even more determined to win the Double for him.
Terry confirmed at the start of this week that he will quit Chelsea when his contract expires at the end of the campaign.
The 36-year-old, who hasn't appeared in the Premier League since November, wants to carry on playing and is being targeted by a number of sides in the top flight, as well as in China, the Middle East and the USA.
It is understood he won't make a decision on where he will play next until after the campaign is over.
But speaking to Talksport, Fabregas said: "It (Terry's announcement he's leaving) came as a surprise.
"There was a lot of talk and speculation that it could be his last year but we didn’t know for sure. It is a very personal decision between him and the club.
"It is a shame because I cannot see anyone replacing the role he does in the team. He is irreplaceable for now. We will miss him."
Terry has won 14 major trophies during his 22 years at the west London club, but could add two more winners' medals before he departs.
Chelsea take on Tottenham in the FA Cup semi-final on Saturday and currently boast a four point lead over Spurs in the title race.
Fabregas added: "Hopefully, we can lift trophies at the end of the season for him. You always play the game at your maximum but to be able to win two trophies for him and lift them before he goes and says goodbye to everyone would be major for him and fantastic for Chelsea."