Frank Lampard has confirmed Alex Iwobi will be assessed tomorrow with a view to featuring against Southampton at Goodison Park, while Dominic Calvert-Lewin is fit and "in a good place".
Nigeria international Iwobi was taken off on a stretcher early in the second half of the FA Cup tie at Manchester United last Friday, initially being ruled out for around three weeks with an ankle ligament injury.
But in his pre-match press conference on Friday, Lampard said the 26-year-old had responded well to treatment this week and a late decision would be made on his availability.
Calvert-Lewin was on the bench at Old Trafford, as he is monitored following a return from a knee injury.
The Blues boss also said midfielder James Garner is on course to return from a back problem in early February, with winger Andros Townsend continuing his rehabilitation from a long-term anterior cruciate ligament knee injury.
Lampard said: "Alex is a lesser injury than what we thought so we'll see in the morning if he's ready to play tomorrow.
"Dominic's had a good week. We played three games in six days going into Man United, so we had to be careful with that one.
"He's in a good place, he's had a nice week's training, we're managing him as well as we possibly can - he's fit.
"Andros is still a few weeks away. Because it's been a difficult injury, I'll come back when he's getting close as I don't want to put pressure on him but hopefully he's a few weeks away."