Diego Costa was sent to hospital for checks on a rib injury, Jose Mourinho has revealed, on a night where Chelsea woes grew taller.
The London side were knocked out of the Capital One Cup on penalties to Stoke.
And they lost striker Costa after 32 minutes with a blow to the chest – making him a doubt for Saturday’s must-win clash against Liverpool
Costa clutched his lower rib area following a collision with two Stoke’s Charlie Adam early in the game and appeared unable to run it off.
It looked to be a bruised rib injury and was forced off on 30 minutes after collapsing to the ground and waving on the medical staff.
Asked how serious the injury is, Mourinho replied: “He is in the hospital – I don’t know.”
The Chelsea boss said he didn’t know whether Costa would be fit for Saturday, adding: “I think he punched himself.”
French striker Loic Remy replaced the Spaniard and scored in the 91st minute to send the tie into extra-time. Eden Hazard later missed the crucial penalty to send Stoke through.
Mourinho might again be unhappy with refereeing decisions, as Costa was not the only Chelsea player to feel the full impact of some brutal Stoke challenges.
John Obi Mikel showed his abs to the referee to show off his war scars, as Chelsea appeared to struggle with the host’s physical approach.
Despite that, Chelsea had the better of the chances in the first-half and thought they had taken the lead when John Terry flicked the ball home, but they were denied by the offside flag.
Replays showed that the assistant had got the decision correct, but it appeared the Chelsea players knew too as there was little in the way of celebrations.
And things went from bad to worse for the visitors after the break when Jon Walters gave Stoke the lead.