The former Arsenal star is being barracked by fans and says: "A season is long and there are ups and downs and low moments. I know that I am not doing well, but what worries me most and what I want is that Villarreal win and the best for the team.

"I know I can do more and better on the field. I do not know why I am not playing well. I do not believe that either it's physical or technical, but I know that I am not playing well, that people ask a lot of me and I am the first to admit that I must do more. I am not at my best, but the improvement will come."