Rio Ferdinand has suggested that Arsenal have pulled off the best signing of the summer in luring ex-Chelsea keeper Petr Cech across London.
The Czech Republic international kept a clean sheet on his competitive debut against his former club as the Gunners won the Community Shield, and Ferdinand has claimed that Cech's move to the North London side has boosted their hopes of winning the Premier League.
He told BT Sport: "Arsenal have made the best signings, I would say that even if they had just signed Petr Cech.
"He is the best signing in the league, he is that important.
"There is a huge responsibility in that position as a goalkeeper. With him in goal they have got a better chance."
Cech joined Arsenal after 11 years with the Blues.