Diaby error helps United rally to edge out Arsenal

Andrei Arshavin's fierce drive gave Arsenal a deserved halftime lead and they could have doubled their advantage soon after the break when Robin van Persie was denied by a superb save by United keeper Ben Foster.

United levelled soon after when Wayne Rooney was brought down in the area by Arsenal keeper Manuel Almunia and the England striker fired home from the penalty spot. Five minutes later Ryan Giggs crossed into the Arsenal area and an off-balance Diaby headed past Almunia to condemn the Gunners to their first defeat of the season.

United, however, still look some way short of the team that claimed an 18th league title last season. Aaron Lennon netted in stoppage time as Tottenham also maintained their 100 percent record. Liverpool flirted with a third league defeat in four games, trailing twice at Bolton Wanderers before coming back to win 3-2, Steven Gerrard grabbing the third for the visitors after Glen Johnson and Fernando Torres had scored.

Bolton had Sean Davis sent off in the 55th minute when leading 2-1. Stoke City are well-placed after beating Sunderland 1-0 while Blackburn Rovers earned their first point of the season in a 0-0 draw against West Ham United and Wolverhampton Wanderers and Hull City ended 1-1.