Per Mertesacker insists he has paid no attention to Troy Deeney's comments after Arsenal's loss to Watford on Saturday.
Deeney was introduced in the second half of the clash and his impact was telling as the Hornets came back from a goal down to win the match 2-1.
After the game, Deeney claimed Arsenal had 'backed off' and lacked 'cojones', but Mertesacker says he refuses to listen to critics.
"I don't know what he said," Mertesacker told Sky Sports. "I don't pay attention. Anyways it was after the game I think, so I didn't watch it.
"We should concentrate on ourselves first of all, there are so many guys involved and so many opinions, which is fine, but we need to focus on ourselves and learn lessons from that.
"If we start to listen to too many people it's not worth it, honestly, I need to look at myself and think what could have been done better.
"Afterwards, it's easy to judge and easy to say words and think we are lacking something. We have to think how we can provide better performances, especially away from home, where it gets tight and difficult.
"That is all going on here. I'm not a favourite of listening too much to other guys. I haven't done that in 15 years, I'm not going to do that in my last year."