Chelsea's injury woes have worsened after Antonio Conte revealed Tiemoue Bakayoko and David Luiz suffered knocks in the Champions League draw with Roma.
The hectic 3-3 draw on Wednesday at Stamford Bridge saw Luiz start as a holding midfielder alongside £40m summer signing Bakayoko.
However both have suffered knocks, says Conte, which could leave them with a spell on the touchline alongside fellow defensive midfielder N'Golo Kante.
Conte said of Luiz: 'He has a little problem in his calf. In this moment, I can't risk my players, because we are playing always the same players so it's very difficult now to risk someone and to lose him for many times.'
He also said in his post-match press conference that Bakayoko was suffering pain in his groin, which could add him to Chelsea's long injury list.
Conte now faces several awkward selection choices for Chelsea's Premier League clash with Watford on Saturday.
Bakayoko meanwhile is still attempting to acclimatise to London following his move from Monaco, and is yet to impress former England manager Glenn Hoddle.
Speaking on BT Sport, Sportsmail columnist Hoddle said: 'Bakayoko has got to do more for me. He's come over with a reputation but I'm not sure quite yet what he's got.
'He's a big strong player but he got knocked off the ball a few times tonight. Does he get in the box, can he hold it? I'm not sure he's got it.'