Mark Schwarzer produced his fourth clean sheet in just his fifth appearance for Chelsea on Sunday.

The veteran Australian goalkeeper stepped in for Petr Cech in the FA Cup third round clash with Derby County and contributed to the Blues' 2-0 victory at iPro Stadium.

Schwarzer, who joined Chelsea from Fulham this past European summer, was forced into a late save from Chris Martin after having little to do against the Rams earlier in the contest.

Schwarzer's shutout followed up 2-0 results in the Capital One Cup against Swindon Town and Arsenal in September and October respectively as well as the 1-0 Champions League triumph over Steaua Bucharest in December.

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