Manchester City defender Aymeric Laporte saved the champions' blushes after their 1-1 draw at Wolves.
Laporte's first goal for the club, from a smart Ilkay Gundogan cross, cancelled out Willy Boly's controversial opener.
The Wolves defender had appeared to help Joao Moutinho's inswinging delivery into the net with his arm as he put the hosts ahead 12 minutes after the break.
Raul Jimenez thought he had given the hosts the lead before half-time, only to be flagged offside.
City had hit the woodwork twice in quick succession the first half - first, Sergio Aguero fired against a post before keeper Rui Patricio tipped Raheem Sterling's long-range half-volley onto the crossbar.
A draw keeps Pep Guardiola's side top of the table for now, with the rest of the weekend's games still to come.