Mikel Merino salvaged a 1-1 draw for Arsenal at 10-man Chelsea as the race for the Premier League title tightened on Sunday. Arsenal is five points clear of second-placed Manchester City, with Chelsea a point further back in third. Chelsea was reduced to 10 men late in the first half when Moises Caicedo was sent off for a dangerous challenge on Merino. But the home team went ahead in the 48th minute through Trevoh Chalobah’s header. Merino equalized in the 59th, but Arsenal couldn’t make its numerical advantage count and dropped points away from home for the second time in successive matches. It means Man City was the big winner of the weekend, following Saturday’s late victory against Leeds, which saw Pep Guardiola’s team climb to second in the standings. Liverpool beat West Ham 2-0 and Manchester United rallied to beat Crystal Palace 2-1. Aston Villa is fourth after a 1-0 win against last-placed Wolverhampton, and fifth-placed Brighton won 2-0 at Nottingham Forest. Story continues below this ad Isak on target Alexander Isak scored his …