An out-of-sorts Manchester United could only draw 1-1 at struggling West Bromwich Albion on Sunday, leaving them second in the Premier League but seven points adrift of Manchester City.
League leaders City beat Tottenham Hotspur 3-0 on Saturday to reach 53 points and have a game in hand over Manchester United and third-placed Leicester, both on 46.
West Brom, who need a remarkable turnaround to avoid relegation, stunned their visitors with a second-minute goal from on-loan Senegalese striker Mbaye Diagne who beat defender Victor Lindelof to head home.
United looked lethargic for the rest of the half, but their inspirational Portuguese midfielder Bruno Fernandes stepped up yet again in the 44th minute with a spectacular volley from near the penalty spot.
In a more exciting second half in near-freezing temperatures at The Hawthorns, the Manchester club twice saw shots cleared off the line and had a penalty appeal turned down after captain Harry Maguire was manhandled in the box.
Auba hat-trick
Pierre-Emerick Aubameyang marked his return to Arsenal’s starting line-up with his first ever Premier League hat-trick in his side’s 4-2 victory over Leeds United.
The Gabon forward fired Arsenal ahead in the 13th minute then doubled his side’s lead from the spot before Hector Bellerin made it 3-0.
Premier League
West Brom 1
Man United 1
Arsenal 4
Leeds United 2
Other results
• Southampton 1 Wolves 2
• Man City 3 Tottenham 0