Eden Hazard, Alvaro Morata and Chelsea have been urged to take their Champions League opportunity at Atletico Madrid on Wednesday night.
Diego Costa's move to rejoin Atletico from Chelsea was completed on the eve of the Group C contest, with the striker able to play once the Spanish side's transfer embargo is lifted in January.
Costa scored only two goals in 15 Champions League games for Chelsea, while Hazard has five in 37 and is yet to start in the Premier League this season due to the broken ankle sustained in June.