West Ham United took a major blow on Friday in their summer transfer plans after what has been a really promising start to the window. Julen Lopetegui has come through the door in east London and has quickly looked to make this West Ham squad his own. The likes of Max Kilman have been brought through the door to strengthen the backline and provide Lopetegui a player he can rely on. However, there were plans to continue adding to that backline with Bayern Munich defender Noussair Mazraoui. But a move for Mazraoui has collapsed with West Ham as Manchester United now look to make a late swoop. De…