 Complete the following phrase:  In a crucial Premier League game in April 2009, with Chelsea comfortably leading 40 against Bolton Wanderers, Chelsea manager Guus Hiddink took off both Didier Drogba and Frank Lampard only for Bolton to score three late goals which questioned the Chelsea defence, and in particular Čech. Čech, however, responded when he saved a penalty from Mark Noble in Chelseas 10 win at the Boleyn Ground against West Ham. He also kept a clean sheet in the next game against Barcelona during the Champions League semi-final first leg match. Following a 32 win against Sunderland at the Stadium of Light, Čech and Chelsea finished the season with the joint-tightest defence in the Premier League along with Manchester United, having conceded just 24 goals over the course of the season. Despite conceding the fastest goal in FA Cup final history, Čech helped Chelseas 