Sunderland took the lead through Kieran Richardson’s volley five minutes before half-time, before the Black Cats’ upset was sealed by an Alex Oxlade-Chamberlain own goal in the 78th minute.
“We put in a committed performance and gave absolutely everything that was left in our legs,” said Wenger after the 2-0 defeat.
“It was a very difficult game. We had a very unfortunate schedule because we played away in the Champions League then straight away [we played] away again on some very difficult pitches.
“We fought hard today. I felt we were a bit unlucky because there was a 100 per cent penalty for us that Mr Webb missed and then the first shot for Sunderland was a goal.”
Arsenal now look almost certain to finish a seventh successive season without a major trophy, but Wenger says it is too soon to dissect another disappointing campaign and insisted his players must remain focused on securing fourth spot.
“It is too early to say where it leaves us and what we will do,” the Arsenal boss added. “Let’s focus on the next game in the championship and fight, even if there is a small possibility of progressing in the Champions League.
“We have a big game next Saturday, we lost three players today and we are starting to get very short.
“At the moment it is best to let people talk, criticise, analyse and destroy and on our side it is important to show internal strength and resilience and come out with a strong performance in our next game.”
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