Petr Cech is a Gunner.

[the4thjuliek]

It’s official… @PetrCech has agreed to join @Arsenal! Full story here: http://t.co/09V3x81fiQ #WelcomeCech pic.twitter.com/Ov0UmAk2U5
- Arsenal FC (@Arsenal) June 29, 2015

My personal message to @ChelseaFC fans pic.twitter.com/NYPD34Vuag
- Petr Cech (@PetrCech) June 29, 2015

#WelcomePetr.