When Ronaldo returned to Old Trafford in 2013 for the first (and so far only) time to face Manchester United with Real Madrid in the Champions League, Sir Alex Ferguson instructed the club’s PA announcer to break with tradition and read out the Real team second, with Ronaldo left as the last player to have his name read out. Alan Keegan, United’s PA man, followed Ferguson’s instructions and the reception Ronaldo was granted made hairs stand up on the back…