Tottenham's Rafael van der Vaart believes the wheels could come off Manchester City's title bid because of too many "egos" within the squad.
The Dutchman scored in Sunday's 3-1 home win over Queens Park Rangers, a victory that moved Spurs up to fifth in the Premier League, nine points behind the leaders.
"Manchester City look like they're the best team in the league but below them you have a lot of good teams and we are one of those teams," Van der Vaart said. "They're winning games easily and how they played against Manchester United [in the 6-1 derby win] was impressive but they also have the difficulty of a lot of egos, so that could be a problem.
"I was at Real Madrid and that's the problem when you have too many big stars. When you play for a top team and they buy a lot of good players, a lot of other players aren't happy. You look at Emmanuel Adebayor, a great player for us, but at City he was training with the youngsters. He is a great player and he was not even training with the first team."
Van der Vaart is also confident that Spurs will finish above Arsenal in the table and has told their north London rivals not to get carried away with Saturday's frenzied 5-3 victory at Chelsea. Arsenal have now won eight of their last nine games as their recovery from a dismal start to the season gathers pace.
"I believe we're better," he said. "Yes, they're on a good run, but so are we: six wins and a draw from our last seven league games. It's a long season still but I think we have a better squad, a bigger squad. This club want to be in the top four."