Former Manchester United defender Rio Ferdinand says Arsenal have made the best signings in the summer transfer window.
The Englishman believes that this will be the case even if former Chelsea goalkeeper Petr Cech remains their only summer signing.
The 33-year-old left Stamford Bridge after 11 years and was one of the best players for the Gunners in last Sunday's FA Community Shield victory over his former club.
"Arsenal have made the best signings, I would say that even if they had just signed Petr Cech," Ferdinand told BT Sport.
"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."