Frank Lampard has "no doubt" Timo Werner will come through his difficult spell of form for Chelsea.
Chelsea are under pressure ahead of Monday's home fixture with West Ham having lost two straight Premier League games, going down to both Everton and Wolves on the road. A third consecutive top-flight defeat would represent their worst run for over five years.
Germany international Werner, a high-profile signing from RB Leipzig, has not scored for eight matches across all competitions.
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He particularly struggled to make an impact in the games against Everton and Wolves, but Lampard insists his deployment on the left of a front three is not the reason for his woes.