Mannone played a key role in the win at Fulham.
“I believe you would give him 10 out of 10 because everything he did was right, and for a goalkeeper, that is the most important,” said Wenger.
“He stopped everything he had to stop and did not make any wrong decision.
“Overall he has shown he has the potential to be a very good goalkeeper.
“In this job you have to go from game to game. Consistency is the first sign of quality.
“Sometimes keepers look unbeatable, and he looked today that he could make every save.
“He has played a fantastic game today and until the next game, he is the No.1.”