Chelsea head into their mid-week Champions League fixture with Maribor off of the back of an unconvincing victory against local rivals QPR.
Despite the poor nature of their defeat of QPR, Chelsea maintained their unbeaten record and high spirits with the derby victory.
In the Champions League, Chelsea are perched at the top of their group with two wins and a draw, including the emphatic 6-0 rout of Maribor in the reverse of Wednesday's fixture.
Both sides sit at the higher end of their respective league tables, which is expected for a Champions League clash, with Chelsea topping the Premier League and Maribor in third position in the Slovenian PrvaLiga, six points off the summit.
Maribor are currently in line for a Europa League qualifying spot and will need to finish as champions to regain entrance to the Champions League, meaning that their focus will be away from Wednesday's game.
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Costa could be rested
Having been rendered unavailable for the game at Stamford Bridge, Diego Costa could be in line for his Champions League return, following a viral infection.
However, the forward could be rested due to a persistent hamstring injury that could require surgery in the near future. Loïc Rémy will remain sidelined, following a groin strain acquired whilst scoring against Wednesday's opponents.
Mourinho could rest star names
Petr Čech is likely to return to the side due to the lowly nature of the Slovenian opposition, having been ousted by a member of the younger generation, Thibaut Courtois, as Chelsea's number one.
Kurt Zouma is also likely to play a part, as to provide veteran skipper John Terry with a rest. The likes of Eden Hazard, Cesc Fàbregas and Matić could all be rested looking ahead to Saturday's upcoming Premier League clash with Liverpool.
Heading into the midweek clash, both Chelsea and Maribor will have one eye on the league, and could rest several players.
Chelsea will be hoping, and expecting, a routine defeat of the Slovenian's, but Maribor will be waiting on an upset and to reignite their fight for third place in the group.
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