Germany international Michael Ballack should be able to return to action for Chelsea in Tuesday's Champions League game against Bordeaux after being sidelined for the last three weeks with a foot injury.
The 31-year-old midfielder has only featured in two games so far this season - the last being the narrow 1-0 victory at Wigan Athletic.
"He will play but I do not know whether it will be for 45 minutes, 60 or 70," confirmed Blues boss Luiz Felipe Scolari.
Didier Drogba could be handed a start after coming on as a late substitute in Saturday's 3-1 win at Manchester City.
The 30-year-old Ivory Coast international had not played since the Champions League Final defeat to Manchester United in May.
Meanwhile, Frank Lampard expects Chelsea to get better as the season goes on after finding the net in the success at Eastlands.
The former West Ham United star said: "We've started the season very well and we'll get better. We have new players and we have players coming back from injury, so we need to grow and we are at the moment.
"It's great to have Didier back. He's the best striker in the world for me and, as he gets 100 per cent fit, he'll get better.
"I love playing with Deco. I knew how much of a great player he was before he came here, and he's showing it at the start of the season.
"Not many players can adapt straight away and he's brought something new to the team, which is brilliant."