The Uruguay international, who represented his country at this summer's Copa America, is heading to the Greek Super League to continue his career.
The Greek Cup holders are coached by Diego Alonso, who was Uruguay manager between 2021 and 2023. Alonso selected the right-winger at the 2022 World Cup finals after handing him his debut against Paraguay, earlier that year.
Pellistri joined United from Penarol in 2020 but had to wait patiently for his senior bow for the Reds. Two loan spells in La Liga with Alaves helped develop his game before his maiden appearance under Erik ten Hag in the quarter-final win over Charlton Athletic, en route to winning the Carabao Cup in 2022/23.