Souness does not blame the 27-year-old for his stance.
"I think for someone who is a star and a great football player that would be hard to take. I don't think it's that much of a mystery why he feels the way he does."
Souness, who spent 30 years in management after a long playing career and now works as a pundit for Sky Sports, would be doing everything to keep the player if he was in charge.
He added: "If I was at Manchester United, if I was the manager, I'd be sitting down with him trying to talk him round.
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