Postpublished at 19:14 Greenwich Mean Time 27 January 2015
BBC Radio 5 live Danny Mills at Stamford Bridge
"I think defender Gary Cahill has made one or two mistakes in games, sometimes when he's not playing alongside John Terry. I wonder if Jose Mourinho is thinking about Raheem Sterling's pace. One thing Chelsea don't have in abundance at the back is pace, but Kurt Zouma does."
Gary Cahill has been left out of Chelsea's back four tonight in favour of French youngster Zouma.