Arsenal defender Per Mertesacker admits there's a lot more shouting inside the locker room this season.

Arsene Wenger's side were thrashed 6-3 by Manchester City and 5-1 by Liverpool last season as they slipped from the top of the summit to a battle for the Champions League places.

Mertesacker told the Independent: 'We tried to think what went wrong for us last season, especially when we got beaten heavily by those big teams. Very severe.

"It's always a big discussion. I mean, we are responsible for our performances. No one wants to have such a miserable day again.

"You need that arguing culture. We lost that at times. It gets personal, and someone gets upset too quickly, but you have to face the truth and have a proper argument. That was normal 10 years ago and it has slightly changed.

"We lost that a bit, what is the intention of argument. It's really important, not only in general, but in a footballer's life. It has to get louder sometimes. We need to discuss, to find solutions, to get everyone in one direction."