Marcos Rojo has made just 26 plays for United since the 2017–18 season due to several injuries and was expected to be sold in the summer.
But the Argentina international stayed at Old Trafford and has surprised Solskjaer with his attitude in training.
The United boss has also revealed that Rojo is a popular figure in the Man United dressing room and claims the defender is a ‘top-quality footballer’.
‘I thought he was excellent tonight. I think he’s been excellent since we started pre-season,’ Solskjaer said after United’s 3-0 win over Partizan Belgrade in the Europa League on Thursday evening.
‘He’s played maybe more than he expected but that’s why he’s still here.
‘He’s a top-quality footballer.
‘He’s a winner, good mentality, he can pass, he can defend.
‘It’s now about keeping him fit and he’s been fit now for a long, long time and you can see his qualities.’
Questioned about the prospect of Rojo leaving in the winter, Solskjaer answered: ‘You know he’s got such a big heart and such a passion for football and he’s a winner.
‘To have him around when he’s fit and in a good mood, good form, has been great for us.
‘The boys love him, he spreads fear in training sometimes because he tackles properly.
‘He’s one of the ones who really, really cares about this game.
‘I think he’s taking his opportunities every time he’s played.
‘He did it against Liverpool… fantastic, he wasn’t happy he didn’t play against Bournemouth of course, but he played well tonight.’