The French champions go into the decider 2-1 down on aggregate having lost in Paris a week ago and are in need of a famous comeback if they are to progress to the final later this month.
However, they might have a secret weapon after Ferguson, who presided over one of the competition’s most famous comebacks in 1999, visited the hotel on the morning of the match.
Photographers pictured the Scot arriving at the PSG team hotel on Tuesday as the squad relaxed ahead of their match at the Etihad.
Although there has been no official confirmation of the reason behind Ferguson’s visit, MEN Sport understands the hotel is currently only hosting the PSG squad, with no other guests currently staying there due to coronavirus restrictions.
Ferguson has always spoken glowingly of current PSG manager Mauricio Pochettino and after his retirement in 2013, the pair struck up a close friendship and went on to share a bottle of red wine at a Mayfair restaurant.
Pochettino later described the lunch as a ‘dream come true’ and referred to Ferguson as a ‘very special person’.
The former Tottenham manager even paid for the meal after the Scot challenged him to name Argentina’s goal scorers in the 1930 World Cup final win against Uruguay. Which he duly did.
City lead PSG 2-1 from the first leg after second-half goals from Kevin De Bruyne and Riyad Mahrez cancelled out an opener from Marquinhos.
The second leg kicks-off at 8pm BST, with the winners set to face either Chelsea or Real Madrid in the final on Saturday 29 May.