Manchester United must regroup after a heavy home loss to Chelsea while Crystal Palace frustrated the Gunners The frustration among Manchester United fans at full-time was evident at Leigh Sports Village after they had watched their team get thrashed 5-0 by a rampant Chelsea. There are certainly things to be worried about, but perhaps judging United’s new manager, Eva Olid, on the basis of how they performed against Sonia Bompastor’s established side is a little premature. The likelihood of Uni…