Chelsea have lost defender Branislav Ivanovic for a month.

Ivanovic, 26, limped off just before half-time in Chelsea's 1-1 draw at Blackburn on Sunday.

A scan yesterday confirmed the Serbia international has torn a medial collateral ligament. After playing in 24 of Chelsea's 30 league games this season, he will now miss the key clashes against Manchester United and Tottenham, as well as the FA Cup semi-final against Aston Villa on April 10.