The Croatian midfielder has had a stop-start second half of the season, and was only making his full return to consistent fitness after an ankle injury he picked up at Wembley against Crystal Palace.
Initial replays showed James left his trailing leg on the Chelsea man’s ankle and tried as he did to continue he was unable to, with Ruben Loftus-Cheek coming on to replace him.
The current European Champions have had a really challenging second half of the season with injuries and form not at the normally high level.
All that could change if they turn things around in the face of adversity to win the FA Cup against Liverpool.
The Blues lost to the Reds at Wembley when they met for the Carabao Cup final earlier in the season, so they will hope that they have the last laugh this time around.
Liverpool themselves are still with a chance to win the quadruple after reaching the final of the FA Cup, still in with a chance to win the league and looking forward to the Champions League final.