The 34-year-old is set to complete a stunning move to the Ligue 1 giants as a free agent after his contract with Barcelona expired.
This means Messi will play for a different team for the first time in 21 years.
Neymar offers his PSG shirt to Lionel Messi
The Argentina captain will also wear a new number, as he has turned down Neymar’s offer to take his no 10 jersey.
Instead, Messi will wear the no 19 shirt for PSG.
He had previously worn the number for Barcelona and Argentina.
Messi is expected to sign a two-year deal with the French club over this weekend, with the option of a further year.