Diego Costa was one of the 22 Chelsea players who left London for Slovenia on Tuesday ahead of the Champions League Group G clash at Maribor.
Chelsea beat Maribor 6-0 two weeks ago during a four-game absence for Costa, who returned from his persistent hamstring problems to play in last Saturday's defeat of QPR.
Striker Loic Remy (groin) and midfielder John Obi Mikel (knee) are the only injury absentees, while third-choice goalkeeper Mark Schwarzer is ineligible for Champions League competition.
France striker Remy is likely to be out until after the forthcoming international break.
Blues boss Jose Mourinho may rotate his Barclays Premier League-leading side, with Saturday's match at Liverpool in mind.
But he was less than impressed by the performance of his fringe players in the Capital One Cup defeat of League Two Shrewsbury last week, so he must get the balance of selection right to record Chelsea's third win from four matches in this season's competition.
The squad is the same which played QPR, plus Cesar Azpilicueta, the full-back who has now completed his three-match domestic suspension for his dismissal at Crystal Palace.
Victory may secure the 2012 winners' place in the last 16, depending on the result in Schalke's match with Sporting Lisbon.
