Shkrodan Mustafi believes Arsenal need a change of mentality from the loss to Watford to beat Chelsea.
Wenger admitted his men were not available in the first half and did not expect the challenge from Watford, as they lost 2-1.
This is Mustafi’s first loss as a Gunner and it has put the Emirates club nine points behind leaders Chelsea.
Asked whether the players or manager should take responsibility for the result, and the slow start, Mustafi told Sky Sports: “Personally I think the first thing you do is blame yourself first. The most important thing is to look what you have done wrong in the game. Then blame others.
“The players are on the pitch, we blame ourselves before we blame the manager. We have to take that responsibility and then answer.”
“It can only be mental. We know we can play better and we were sloppy at the start.
“It’s all about mentality, being there from the first minute and knowing the Premier League is a difficult competition and teams are going to go for the opportunity they have, which Watford did. They ran at us and defended well. We were not clever or concentrated enough to stop them.
“We were not there, they ran all over us, and we cannot be happy with that at home. We have to bounce back, it’s a big game against Chelsea, we will try to be there from the first minute to the last second.”