Arsenal manager Arsene Wenger relied on his side's better stamina to beat table-toppers Manchester United on Sunday, according to Gunners midfielder Mathieu Flamini.
A Wayne Rooney goal looked like it would be enough to win the game but Arsenal hit back in the final seven minutes, scoring through Robin Van Persie and Thierry Henry to claim the points.
Flamini told The Sun that Wenger counted on his team of youngsters to make a late charge against a United side whose average age was nearly four years more than that of the Gunners.
'The manager told us at half time we would crack United,' said Flamini.
'He told us `they are no longer the same team after 70 minutes'.'
Left-back Gael Clichy agreed that Arsenal's fitness turned the game in the closing stages.
He said: 'We were better than United physically and showed a character and state of mind beyond reproach.
'I don't know if we are unstoppable but the point is that we know we can deliver something throughout the whole game and that is important.
'We have a young team but I think all the work we have been doing with all our coaching staff has been a big plus for us.'