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As a former employee of Manchester City, Sylvain Distin will be especially keen on producing his best form on Saturday, yet he may be tested more than in any other game this season.
Firstly, he's coming off one of his least convincing displays in months, against Wigan, where he was as disappointing as he's ever been for the Toffees. Secondly, he won't be paired with Phil Jagielka, who's been Everton's best defender this season, but with John Heitinga, who's continually struggled.
Combining those two aspects with the fact he's likely to face Carlos Tevez, one of the best strikers to have played the Toffees this season, the magnitude of his task becomes clearer.
Tevez is coming off a hat-trick against Barnsley in the FA Cup and has six goals in City's last four games, just one less than Nikica Jelavic has scored all season.
Without Jagielka's leadership, Everton must rely on Distin to put in a commanding display, keeping the back four organised while keeping a close eye on Tevez.