Arsenal midfielder Cesc Fabregas admits the Gunners may have been "too nervous'' as they missed a host of chances to draw 0-0 at home to Fenerbahce.
In the last week Arsenal have endured a demoralising draw against Tottenham, defeat at Stoke before tonight's Champions League stalemate.
A frustrated Fabregas told Sky Sports Xtra: "As usual we had a lot of possession, we outplayed them all over the place. But we were lacking a bit of mobility, still, in the final third.
"Sometimes we are a bit too nervous. When things don't go well, sometimes you try to do things on your own.
"It's a bit frustrating, of course, when you have so many chances but don't score.''
Gunners boss Arsene Wenger believes the recent run of games have taken their toll.
He told Sky Sports 2: "We created many chances in the first half and in the second we became a bit flat physically, I believe that is explained by the fact we had three tough games last week and you could see that on the creative side of our game.''