The Argentina international has suffered from a number of injury problems this season but is back fit and in contention for a starting spot in Saturday's Premier League clash with West Ham at Old Trafford.
After appearing at the ground for the Under-23s last week, the South American is in a position to challenge for a place, particularly with left-back Luke Shaw suspended.
“It’s been very good,” Rojo told MUTV ahead of the clash with the Hammers. “Since he [Ole] arrived, he’s had an incredible relationship with me.
”When he got here, he told me I was part of his plans and that he wanted me to get myself fully fit.