Ruben Amorim said Manchester United need to "run like mad dogs" if they are ever going to become a credible force again as he conceded they are not "a massive team".
United's midweek defeat at Arsenal saw them plummet to 13th in the Premier League and Amorim has questioned aspects of the squad's fitness.
The Portuguese said at his first press conference United "have to be better running back" and that they need to improve their "physical aspect".
Amorim has started 21 different players during his four games in charge and made six changes in each of the last three fixtures, with the rotation partly enforced by some players' returns from injury amid the trial and error process. READ MORE: Amorim close to settling on United first XI READ MORE: United missing three players as Amorim pays tribute to Kath Phipps Former United manager Jose Mourinho said after a 2-2 draw with Southampton in December 2018 that they "don’t have many, with all the respect, mad dogs – the ones who bite the ball all the time and press all the time".
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