New Manchester United signings Matthijs de Ligt and Noussair Mazraoui have been pictured in training. Manchester United have wasted no time at all getting new signings Matthijs de Ligt and Noussair Mazraoui mixed in the first team group. Mazraoui and De Ligt’s transfers were confirmed less than 24 hours ago, with both players assigned squad numbers. Now, both players have been involved in training at Carrington, as the team step up preparations for the opening fixture of the season. READ: Who is Matthijs de Ligt? Meet Manchester United’s new centre-backDe Ligt and Mazraoui trainBoth players we…