A look a Petr Cech's 11 year career in Chelsea is most impressive, from 2004 to 2015.
Stats show that Cech was better last season than Courtois this immediate past season
It's time for every Chelsea fan to question why. Allowing a goalkeeper of Cech's class to leave the club is a worthy concern alone, but to allow him to move to another Premier League team brings it to a whole new level.
Let's go back to the start of the season. Cech was on the back of sharing the top flight's Golden Glove award with Arsenal's
Wojciech Szczesny after both goalkeepers claimed sixteen clean sheets each in the 2013-14 season. He was also named as the goalkeeper in the PFA's Team of the Year. At 32, Cech is in his prime and he can still offer many years at the very top.
Jose Mourinho chose to