The ex-Lens defender moved to Real in 2011 and has gone on to have a glittering career which has seen him win four Champions League titles.
Meanwhile, former United defender Gary Pallister has urged Solskjaer to add another defender to his squad.
“[Victor] Lindelof has had a really good season as well,” he said.
“I think after his first year we looked at him and thought, ‘Has he really got the physicality for the Premier League?’
“He’s not as dominant as Harry but I think he’s complimenting him. He’s got the hang of the Premier League now, the physicality of it, the pace of it. I think he’s gone strength to strength.