Moran wrote for the Sunday World: "Jose, at Chelsea, was the master of the side-swipe, of the narky comment that annoyed opposing teams, players or supporters in the run-up to a big game.
"I suspect Mourinho will be a little more measured this week.
"He'll know full well that Manchester United's history and traditions will demand a little more of their manager than attacking opponents without any provocation.
"Fear of this sort of stuff was one of the reasons Mourinho didn't get the manager's gig straight after Alex Ferguson.
"He will not want people pointing fingers at him, saying 'I told you so' just before the biggest game of his short tenure as the Chief Red Devil."