On 18 August 2011, Čech was dominated out for as much as 4 weeks after he sustained a knee harm in coaching. He made his return three weeks later against Sunderland during which Chelsea received 2–1. He stored a clean sheet in Chelsea’s first Champions League match of the season in a 2–zero win over Bayer Leverkusen. He finished the season by signing a brand new four-yr contract with Chelsea in May, maintaining him with the club till the tip of the 2015–sixteen season. Čech kept objective for Chelsea within the six-match winning run that opened their season and positioned them on prime of the Premier League.