Adam Bareiro was loaned to Al-Rayyan from River Plate following a brief and disappointing period at the club. Although he was one of the significant signings in the mid-2024 transfer window, Bareiro did not manage to score any goals for River. He found it challenging to secure a starting position, facing competition from Miguel Ángel Borja. Initially, both River Plate and Boca Juniors were interested in Bareiro as they were in search of an effective striker. River Plate ultimately secured his transfer by offering $4,500,000, which was a million more than Boca Juniors was willing to pay. Bareiro had expressed his excitement about joining River Plate, describing it as a 'unique opportunity' and a 'very respected club worldwide.' However, after playing only two matches without scoring, Bareiro was loaned out to Al-Rayyan until June, with an option to buy. Bareiro conveyed his sadness at leaving River Plate, acknowledging the club's efforts to sign him and reflecting on his short-lived time there.

Rumors indicated that Adam Bareiro had intentions to leave River Plate as soon as possible. However, Bareiro used his social media to deny these claims, stating: 'It is totally false.' He emphasized his commitment to the club, his teammates, and the fans, expressing pride in defending the River Plate jersey and gratitude for the fans' support.