DONE DEAL – Petr Cech In ARSENAL SHIRT FINALLY, £10.9m Deal Done & Dusted Posted in Arsenal, Chelsea By By Far The Greatest TeamPosted on June 23, 2015 Sky Sports have reported Arsenal has finally signed Petr Cech. According to sky, the deal is agreed between Chelsea and Arsenal for £10.9 million. So how about a mock Petr Cech in Arsenal shirt?