The young Reds travel to Burnley on Wednesday for their FA Youth Cup fourth-round tie at Turf Moor.
In defeating Birmingham in the last round, United identified themselves as one of the favourites, with Pogba - the French youngster Rennes were so unhappy about losing last summer - among the scorers.
McGuinness is delighted at the way Pogba has put the controversy surrounding his arrival at Old Trafford behind him as he looks to catch Sir Alex Ferguson's eye.
"I am really delighted with Paul," said McGuinness.
"It has not been easy for him but at least now all the talk is about his football.
"He knows, as do all the rest of our young players, what the Youth Cup means to Manchester United.
"The number of top players who have won the competition goes right back to Sir Matt Busby's days.
"So, while we would never do anything other than concentrate on our next game, knowing Burnley have an excellent youth set-up themselves, that carrot is always there at the end."
Source: Manchester Evening News