The transfer window has now been open for a week and Manchester United seem to be beginning to make moves. While Manchester United aren’t imminently signing anyone right now, the top targets for the club this summer seem fairly defined, and now movements are being made. Centre-back, left-back, midfield and striker are the four positions that appear to be being prioritised with definitive targets in each. READ MORE: Fabrizio Romano names the four positions he’s convinced Man Utd will sign players this summerIn terms of a defender, Jarrad Branthwaite is target number one, but he’s proving too ex…