Chelsea defender Branislav Ivanovic has joined the team's injury list and is set to be sidelined for up to a month. The Serbian international limped off Sunday's Premier League draw with Blackburn and his absence has been confirmed by manager Carlo Ancelotti. Chelsea are already without first-choice full-backs Ashley Cole and Jose Bosingwa, who were both ruled out for the rest of campaign. Brazilian veteran Juliano Belletti has also been struggling with a knee problem, leaving fourth-choice Paulo Ferreira as the only fit and recognized right-back. Chelsea visit bottom club Portsmouth on Wednesday as the Blues aim to close the gap with leaders Manchester United.
