Dutch midfielder Georginio Wijnaldum will spend the 2022/2023 season on loan with the UEFA Europa Conference League champions.
Wijnaldum struggled to break into the PSG side last campaign after joining on a free transfer from Liverpool, but he has now found a new club.
"It's a really good feeling to be a Roma player," the Dutchman said, as per the club's official website.
"Everyone I have spoken to has given me great feedback about the club and its fans.
"The club made it clear just how much they wanted me in the efforts they made to complete the deal, which always gives a player a lot of confidence and belief. The reception from the supporters, on social media and elsewhere, has also been fantastic.
"I promise to give 100% and help the team compete for all our targets this season."