"We have lots of injuries, probably too many, but no fresh ones. We have had Jack Colback training all week and Manu Riviere, so there's two to be added to the squad," McClaren told reporters.
Having been knocked out of both domestic Cups, Newcastle have an 18-day break following Saturday's clash and McClaren hopes to welcome back injured players Papiss Cisse, Vurnon Anita, Gabriel Obertan and Massadio Haidara.
After beating West Brom last weekend, Newcastle, who are fourth bottom of the table, a point above the relegation zone, head to Stamford Bridge looking for back-to-back league wins for the first time since November 2014.
(Reporting by Shravanth Vijayakumar in Bengaluru, editing by Ed Osmond)
