Ramires and Didier Drogba have not travelled with the rest of the Chelsea squad to Portugal where the Blues are set to play Sporting Lisbon.
Ramires missed Saturday's 3-0 win against Aston Villa after sustaining a muscular injury the draw at Manchester City and is not expected to feature against Arsenal in the Premier League on Sunday.
However, Diego Costa is part of the 20-strong squad, as are Nathan Ake and Mitchell Beeney.
There are some other great teams – so let's see how it goes.Eden Hazard
Meanwhile, Eden Hazard says Chelsea are the one of the teams to fear in the Champions League this season. Jose Mourinho's side have made a blistering start to the Premier League season, winning five and drawing one of their first six matches.
However, they could only draw their opening Champions League encounter against Schalke earlier this month and need a victory in Lisbon to get their European campaign back on track.
Hazard said: "My ambition in the Champions League is pretty much the same as it has been since I've been at Chelsea and that is to win it. With the team we have I think that it's possible.
"I don't know if we are the favourites - there is also Real Madrid who are the holders, Bayern Munich are very strong again this year, there are some other great teams – so let's see how it goes."
Chelsea are 1/1 to win the Champions League this season, and 1/1 to beat Sporting on Tuesday.
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