Harry Maguire might not be the most important player at Manchester United, but he’s shown his class in a recent video. Harry Maguire faces another summer of uncertainty at Manchester United with a rebuild in central defence expected. Ineos are actively pursuing both Matthijs de Ligt and Leny Yoro in two deals which would further push Maguire down the pecking order at Old Trafford. But as of now, Maguire is in pre-season training at Carrington, and now a clip has emerged which shows why he’s so important in the squad. Maguire shows his class in the clip, here’s exactly what he did. READ MORE: W…