LONDON — Mikel Merino led Arsenal to a 1-0 win against Chelsea in the Premier League on Sunday. Merino’s first-half header settled the London derby at the Emirates Stadium and saw second-placed Arsenal move within 12 points of leader Liverpool. In another all-London clash, Fulham beat Tottenham 2-0.

Another goal from stand-in forward Mikel Merino again sealed three points for Arsenal against Chelsea at the Emirates. In a feisty London derby, with strong challenges and yellows on both sides, it was Mikel Arteta’s side who came out on top to move four points clear of third-place Nottingham Forest in the Premier League table.

As coordinated as those attacking moves are Arsenal have become known this season for their set-piece proficiency. They hadn’t scored from corners in a while, but against a Chelsea team who seemingly don’t know how to make the most out of their own set-piece specialist they would get back in track with a Mikel Merino headed flick.