And Rooney reckons the former Real Madrid boss can make United winners again.
He added: “I’ve played against many Mourinho sides over the years and I can’t remember any easy games, so I think that says it all.
“His teams are always hard to beat, tactically disciplined and, most importantly, successful.
“He’ll bring all these qualities with him and I’m sure he’ll have his own ideas, but one of the biggest assets will be his experience.
“He’s managed a lot of successful teams throughout his career and all that experience will be vital.”