Carlo Ancelotti admits he would have considered replacing Sir Alex Ferguson in 2013 had Manchester United contacted him earlier.
Ferguson retired as United manager after over two hugely successful decades in charge in 2013.
Everton manager David Moyes eventually replacing his fellow Scot, but Ancelotti claims that he was approached to takeover.
But the Italian, now manager of Bayern Munich, told FourFourTwo that United and Ferguson approached him too late, and that he had already agreed to become head coach of Real Madrid.
“After he [Ferguson] retired in 2013 he spoke to me, but I had already given my word to go to Real Madrid,” Ancelotti said.
“Manchester United were too late. But otherwise I would have been interested in going to Old Trafford.”
The 57-year-old then discussed any potential interest in a move for midfielder Bastian Schweinsteiger, who left Bayern last summer to join United.
The German has struggled at Old Trafford, and is not thought to have a future at the club under Jose Mourinho.
“He was a fantastic player for Bayern,” said Ancelotti, “but I think that it is not time for him to come back to Munich.”