straight to your inbox every day for freeOle Gunnar Solskjaer has backed Anthony Martial to rediscover his form for Manchester United after a forgettable first half of the season.Martial, 25, has scored just five goals - two in the Premier League - and could be dropped at the expense of Edinson Cavani in United's trip to Arsenal on Saturday.There was widespread bafflement at Solskjaer's decision to keep Martial on for the full 90 minutes of the midweek defeat to Sheffield United and the