The Paris giants will face United for the first time ever in a competitive match on Tuesday night as their two-legged European clash gets underway.
But PSG winger Angel di Maria will find himself in familiar surroundings, having spent the 2014-15 season as a United player.
Di Maria did not enjoy the best of times in England, but he looked relaxed as he trained alongside his PSG team-mates on the eve of Tuesday's first leg.
Along with Kylian Mbappe, 30-year-old Di Maria will be one of the biggest names on PSG's Old Trafford team-sheet as star duo Neymar and Edinson Cavani are set to miss the game through injury.
There had been a glimmer of hope that Cavani may shake of a thigh issue to feature, but PSG confirmed on Monday that he will not be in their squad this week.
