Manchester United brought in two new centre backs over the summer but have seen one target make a surprise move as a free agent. Erik ten Hag entered the summer transfer window knowing that he had to bolster Manchester United’s centre back options. Raphael Varane moved on and with Lisandro Martinez’s injury problems well-documented, United simply had to buy new defenders. United invested in Leny Yoro, securing a huge coup by signing the Lille wonderkid before he picked up a pre-season injury. United also splashed out on Matthijs de Ligt, signing the Bayern Munich defender as he reunited with h…