MANCHESTER UNITED are in for a crucial summer of transfers at Old Trafford!The Red Devils are making a shock move to sign free agent Dominic Calvert-Lewin, SunSport can exclusively reveal.In other news, Man Utd have announced the signing of young defender Diego Leon from Cerro Porteno.Meanwhile, the Premier League giants are reportedly stepping up their interest in Aston Villa striker Ollie Watkins.Elsewhere, we have the very latest on United’s pursuit of Brentford forward Bryan Mbeumo.FOLLOW THE CLUB WORLD CUP ON DAZNFollow ALL of the latest news, rumours and updates from Old Trafford below…