Petr Cech believes Arsenal have conceded too many fortuitous goals this season but insists he is playing at a level required to remain first-choice goalkeeper at the club.
Cech, who won the Premier League Golden Glove award last season, has managed just six clean sheets in 20 games this campaign with rivals Chelsea, Manchester United and Tottenham all boasting better defensive records.
'So far it's a kind of a different campaign because I think I have been doing well but if you take clean sheets, we had a run of games where we conceded at least one goal,' Cech told Arsenal's website.