Jose Mourinho has asked Chelsea striker Diego Costa to give him more when not on the ball.
Costa is under pressure to deliver after scoring just four times this season, the most recent in the win over Norwich.
The striker and Mourinho had a heated exchange at half-time of Tuesday's win at Maccabi Tel Aviv which Mourinho afterwards played down.
Yet it is clear the Portuguese wants more from Costa.
"I told him, from a distance, with gestures, that I was not happy with the movement he did," Mourinho said.
"He told me also a few nice words from where he was. And nothing happened.
"He's not reading the game properly in these actions. That was my opinion.
"As a striker you must read it. You have to play not just when you have the ball, but also when others have the ball.
"You have to try to anticipate things. Just a question of reading the game faster.
"It's not because you score one goal against Norwich that suddenly you are again on fire. It will be a process."
John Terry could feature despite sustaining an ankle injury in Israel and missing training on Friday.
"We have a little hope that it's possible," Mourinho added.
Midfielder Ramires is a major doubt, too, having missed the Champions League tie with an undisclosed injury.