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.

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Fresh from underwhelming but ultimately effective displays in midweek, Arsenal and Chelsea face off at the Emirates Stadium on Sunday with the stakes altogether different for both sides. A win would certainly be welcome for Mikel Arteta's side,