Marchisio played with Pogba from 2012-2016 before the Frenchman sealed a club record £89million move back to Old Trafford.
The Frenchman’s second spell at United has been a frustrating one and he is set to leave when his contract expires this summer.
“Me, [Arturo] Vidal and [Andrea] Pirlo immediately understood his enormous potential and that’s what he showed.
“We also became friends and as a friend I told him that Manchester United couldn’t be the right solution for him, the right choice. Not because of the team, it’s a great team, but because of the moment of his career.
“It would be good for the club, I would suggest him to come back. But it’s up to him and the club to decide.”