The former Chelsea stopper was guilty of not one but two horrendous errors as Arsene Wenger’s side threw away the chance to make a winning start to their Premier League campaign.
Naturally, the legendary Czech stopper appears desperate to move on from the error, although not without holding his hand up and admitting his fault.
First game like this was not in the script – Mistake and no points ???? but tomorrow is another day to get ready for the next game ! ???? #COYG
— Petr Cech (@PetrCech) August 9, 2015
Admittedly, Cech was responsible for failing to deal with a set piece, when he launched forward to clear the danger only for Hammers defender Cheikhou Kouyate to head into an empty net.
Then he was slow to react as Mauro Zarate turned before sending a bobbling shot past the former Chelsea man, who appeared to go to ground remarkably slowly.
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The former Stade Rennais has enjoyed a decade in the Premier League as one of the genuinely superb stoppers in the division, but having spent a season in the stands, watching on as Thibaut Courtois held fort for the Pensioners, he appears to be a little rusty.