Russia international Andrey Arshavin is concerned that Arsenal always seem to lose the key matches.
The Gunners slumped to a 3-0 home defeat to Chelsea on Sunday and have also lost to Manchester United and Manchester City this season.
Arshavin only moved to the Emirates Stadium from Zenit St Petersburg in January but is beginning to think he may not have made the right move.
He told the Daily Express:"What I feel bitter about is that we lose in all the big matches.
"That is disturbing and also lets certain doubts creep into my mind. Chelsea are now 11 points ahead of us and they look the strongest team.
"They have attacking players who can make use of opponents' slightest defensive mistakes. Didier Drogba is the strongest in the world. He and Zlatan Ibrahimovic."
Arshavin has a made a big impact with the Gunners, scoring 12 times in 32 appearances for the club.