the blues are currently seven points clear with a game in hand closest rivals and seven games remaining ahead of the weekend 's visit of manchester united .
kurt zouma -lrb- left -rrb- , nemanja matic -lrb- top right -rrb- and eden hazard -lrb- bottom right -rrb- work out at cobham .
players including eden hazard and nemanja matic have been pictured being put through their paces .