Chelsea are sweating over the fitness of Branislav Ivanovic after the player picked up a knee injury against Blackburn.
Ivanovic took a knock to his knee following a clash with El Hadji Diouf and had to leave the field of play as the Blues were held to a 1-1 draw at Ewood Park.
The defender is now rated doubtful for the trip to Portsmouth on Wednesday night but there is better news as both Petr Cech and Michael Ballack should be available.
Carlo Ancelotti says there can be no more slip ups after the draw at Blackburn and having the duo back will be a big boost.
"It's important to win on Wednesday," Ancelotti revealed. "Our difficulties started against Manchester City in an unbelievable game [Chelsea lost 4-2] and the only situation is go forward and win.
"We have less probability to win this title but we want to give it our best.
We need to work together, stay compact and the next game against Portsmouth is very important, we can stay close to Manchester United."