Darren Fletcher admits he is concerned Manchester United teammate Wayne Rooney could be on his way out of Old Trafford.
The Red Devils revealed on Monday they rejected a second bid by Chelsea for Rooney, thought to be worth £30million.
Fletcher believes Rooney still has a large part to play at the club, and is hopeful he stays with the English champions.
''It's not the type of thing I have asked him. You do worry he might leave because he's a fantastic football player," Fletcher is quoted as saying by Press Association Sport.
''But we will leave that sort of thing to Wayne and the club. Me personally, I hope he stays because he has been fantastic for Manchester United and a big part of all we have achieved in the last nine, 10 years since I have been in the squad.
''In that respect I hope he stays and we achieve more things together for United.''
Meanwhile, Fletcher, who continues to battle an ulcerative colitis condition, is pleased United are pursuing Barcelona midfielder Cesc Fabregas.
'[Cesc] is a fantastic player and Manchester United are always linked with great players. Whether that happens remains to be seen but it is part and parcel of being at this club," Fletcher said.
''They are always going to attract and sign big players that are going to add to the fantastic squad we have already got.''