, the Red Devils board have been left staggered at the supreme fitness of the 35-year-old, who proved that age was only a number.
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Before injury cut short his season, Ibrahimovic banged in 28 goals in 46 games, and United's executive vice-chairman Ed Woodward believes Ronaldo, 32, will perform even greater than the former Paris Saint-Germain star.
The Portuguese maestro possesses greater speed and agility over the super Swede, and consistently performs on the big stage - as well as already having a superior understanding of the Premier League.
United fans have been in dreamland after it was revealed that Ronaldo wishes to leave the Bernabeu Stadium, with a move back to the Theatre of Dreams his preference.
He has reportedly told his agent Jorge Mendes to push through a move back to the club where he won his first Champions League title, stating he feels he has unfinished business with the Europa League winners.
Jose Mourinho is reportedly lining up a whopping offer of £183MILLION and David de Gea to acquire his services, but faces competition from PSG who are prepared to nab him by offering him a salary of £26million-a-year.
Ronaldo could join his Los Blancos team-mate Alvaro Morata at United, with Mourinho desperate to bring in two strikers, with the Spanish marksman already agreeing personal terms with the club.