Frank Lampard is unsure when Christian Pulisic and Tammy Abraham will return to action for Chelsea.
The Blues face Liverpool in the FA Cup fifth-round at Stamford Bridge on Tuesday.
Lampard also provided an update on Ruben Loftus-Cheek and Callum Hudson-Odoi.
"I am hoping [Callum] will be fit for next Sunday," Lampard said at Saturday's draw with Bournemouth, via Goal. "Christian is the same as Tammy; there is no clear answer. [Tammy] went to Barcelona, to have a look at his ankle for some more advice on it.
"We will have to work around [Jorginho's suspensions in the league and Champions League], we have players who can play there. Kovacic finished in the holding role, Ross Barkley, Mason Mount, Billy Gilmour, there are solutions and there might be opportunities for other players.
"[Loftus-Cheek] may get in the Under-23s game on Monday, he missed the opportunity here, he had a small calf injury a week or two ago which stopped him playing in the Under-23s game that I wanted him to and I would like to see him complete a whole game.
"It wouldn't be fair on him to bring him on for 15 minutes and it probably wouldn't be the right thing for the team at the moment. Once he shows he can go through a game, he will probably be back in."