The German was appointed on Monday on a contract until the end of the season after the sacking of Ole Gunnar Solskjaer and will work in a consultancy role for a further two years.
Ronaldo is United's top scorer this season with 10 goals in 15 appearances in all competitions.
Manchester United coach Michael Carrick says Jose Mourinho is in an elite group alongside Alex Ferguson as one of the greatest managers of the past 30 years despite his current problems at Old Trafford.
Manchester United treated their stalwart Michael Carrick to a memorable farewell on Sunday after a first-half goal by Marcus Rashford gave them a 1-0 home win over Watford on the final day of the season.
Michael Carrick merits a very special farewell as the former England midfielder makes his last Premier League appearance for Manchester United on Sunday says team-mate Ander Herrera.
Midfielder Michael Carrick says Liverpool remain bigger rivals to Manchester United than neighbours and Premier League champions Manchester City.
Manchester United midfielder Michael Carrick asked the Football Association (FA) not to select him for England duty after suffering from a bout of depression during the 2010 World Cup
Michael Carrick moved to Manchester United in 2006 from Tottenham Hotspurs, he won five Premier League titles.