Jose Mourinho says he has an open-door policy with Sir Alex Ferguson, after inviting the former Manchester United manager to training sessions this term.
The 74-year-old Ferguson, who reportedly had not returned to the club's Carrington training ground in recent seasons, was welcomed back by Mourinho, presumably in a bid to invigorate his stumbling side.
After starting the season well, Mourinho's United have struggled for consistency, and head into their Boxing Day fixture against Sunderland in sixth place.
The Portuguese boss had his work cut out for himself after inheriting a squad low on confidence, and will feel he is making progress, having not lost in 10 games in all competitions.
Speaking to the United We Stand fanzine, he said: "He had not been back since he left, but I brought him back to be with his people.
"I wanted the players to see the big man and for me and him to share some minutes and have lunch together. I enjoyed it, he enjoyed it."
He added: "I'm the type of person who does not see ghosts. I respect the past and I know he loves the club.
"We have good relations and I know this is his house.
"When he wants to come here, to the dressing room, to see the players train, he knows he is more than welcome."