Arsenal's signing of Petr Cech could be key in winning their first Premier League title in 12 years, according to the club's former goalkeeper David Seaman.
Cech, 33, ended a trophy-laden 11-year association with Chelsea on Monday after finally completing a long-anticipated move to their London neighbours for a reported fee of £11 million, on a four-year deal.
Arsenal have struggled to find a consistent keeper ever since the departure of Jens Lehmann in 2008, but Seaman reckons Cech's arrival will bring long-term stability.
''Chelsea's loss could, and likely will, be Arsenal's gain. In my opinion this signing could genuinely be the difference between who will come first and who will come second next season,'' he said on BreatheSport.
Cech won 13 trophies at Stamford Bridge, including four Premier League titles and the 2012-13 Champions League and will compete with David Ospina and Wojciech Szczesny for the No. 1 spot.
Szczesny, however, welcomed the new signing with a post on his Facebook page and wrote: ''Petr Cech, welcome to Arsenal FC! Delighted to have a chance to learn from one of the best GK's in the world!''