Hughes, now manager of Blackburn, said: "Ole is guaranteed a place in United's history and football's history with his goal in the European Cup final (in 1999).
"But he brought so much more to Manchester United. He had a huge influence over many years.
"I met him on many occasions. He is a true professional, a very humble man but a very successful one.
"Ole has many qualities and I'm sure that will help him going into another period in his life."