This is not the first time an under-fire Manchester United player has undergone a personal training routine in an attempt to find some form again. Harry Maguire, turning down a £30 million move to West Ham in order to fight for his place at Old Trafford, was spotted being put through his paces by Chelsea and Portugal legend Ricardo Carvalho as he prepared for the start of the 2023/24 campaign. That extra effort certainly did Maguire no harm. Starting the season without the captain’s armband and having been made available for transfer, Maguire ended it as arguably Manchester United’s most relia…