Pogba – who continues to recover from an ankle injury – has been linked to Serie A champions Juve and LaLiga giants Real Madrid, with the United midfielder reportedly unhappy in Manchester.
The 26-year-old left United for Juve in 2012 but Pogba was prised back to Old Trafford in 2016 for a then-world record transfer fee of €105million (£89.3m).
Raiola placed Pogba's United future in fresh doubt after watching Juve's late 1-1 draw against 10-man Milan in the opening leg of the Coppa Italia semi-final on Thursday.
"Italy is like home for Paul. He would not mind going back to Juve but we will see what will happen after the Euros," Raiola told reporters.
"Paul wants to play at the best level but he can't escape by Manchester United if they are in a difficult situation."
It has been an injury-ravaged season for Pogba, who has started just five Premier League matches this term and made only seven appearances in total.
Pogba has only managed eight games across all competitions for United, who languish eighth in the Premier League after 25 rounds.
United travel to fourth-placed Chelsea on Monday as the Premier League returns after a minibreak.