Manchester United manager Ole Gunnar Solskjaer sees opponents West Ham as top six contenders.
The Hammers are level on points with Solskjaer's side after five matches, and the Norwegian sees no reason why they can't challenge the top-six teams this season.
He said: "By the quality and by the game we played against them last season and the games I've seen them this year, why not?
"Last year we were lucky to beat them and it'll be a good test again for us. We've had two clean sheets now, that gives the defenders confidence and if we can keep a clean sheet then it will be easier for the strikers because you know that you don't have to score twos, threes and fours every time."