Manchester City have fitness doubts over Micah Richards and Yaya Toure ahead of next Monday's derby encounter against Manchester United.
England international Richards is currently struggling with a hamstring injury that forced him to miss Sunday's 2-0 win over Wolverhampton Wanderers.
Meanwhile, midfielder Toure is believed to be struggling with a muscular problem in his leg.
Should the duo recover to be available for selection, manager Roberto Mancini is expected to have a fully fit squad at his disposal.
