The former Juventus star will sign a two-and-a-half year deal at the Monumental, and affirmed that he wanted to bring the Millo back to the top flight
The striker, who spent his infancy and adolescence in Argentina and played for Platense before moving to Europe, has verbally agreed a two-and-a-half year deal at the Monumental and passed his medical on Friday afternoon. He will sign a contract on Monday and be presented as the newest member of the Millo squad.
Trezeguet had previously rescinded his contract with UAE side Baniyas in order to facilitate a move back to Argentina and stated that it was a dream come true to play in the nation once more.
"I am in perfect condition to play. For me this is like fulfilling a life-long dream, I left Argentina very young and I am entering this with great enthusiasm," the 34-year-old told Ole in declarations published on Friday.
"I have spoken with Matias [Almeyda] and we had a very productive conversation. He explained to me the club's situation, their objective is clear and so is his. For me all of this represents a great challenge."
Asked how he felt about playing in the second level of Argentine football - River currently lie second behind Instituto in the Nacional B - Trezeguet drew on his experience in Italy to assert that he relished the challenge.
"I have already been through this with Juventus in the 2005-06 season. The main goal was to go back up, what Juve meant to everyone was a nice feeling. River can give me the same feeling 100 per cent," he explained.
"I know what River represents, what they are fighting for and what they have to do, they are in a situation that is unheard of. Entering the Monumental will be the greatest feeling."
Trezeguet enjoyed spells in Europe with Monaco, Juve and Hercules, and also lifted the World Cup and European Championship as a member of the France national team.