The second-year midfielder was a constant figure in the United lineup, making 31 appearances (30 starts), the most of any United player. Acosta was the Black-and-Red’s top scorer, finishing tied for the team lead in goals (five) and was second in assists (five). The Black-and-Red were 5-0-0 when Acosta scored and his four game-winning goals was the fourth most in Major League Soccer in 2017. The Argentine maestro was an influential creative figure in United’s attack and led the team with 53 key passes in 2017. He also led the club in minutes (2,419), shots (46) and shots on goal (24). Against Atlanta on April 30, he recorded his third career multi-point game, scoring and providing an assist to earn him an MLS Team of the Week selection.
In his first season in Major League Soccer, the creative Argentine adapted well, finishing the year with 31 appearances (25 starts) and leading the team in assists (11). He scored his first MLS goal on 4/23, a sublime chip against the New England Revolution that went on to win AT&T Goal of the Week and Goal of the Month. Against Vancouver on 4/09, Acosta recorded his first two career MLS assists. He also tied a club record for assists in a match, notching three assists in United’s 6-2 victory over Chicago on 8/27.
A creative midfielder, Acosta played for Boca Juniors in the 2013-14 season, recording two goals in 25 appearances with the club. The 21-year-old was sent on loan to fellow Argentine Primera side Estudiantes de la Plata, playing 27 times and recording 11 starts.
November 16, 2016 - After spending the 2016 season on loan from Boca Juniors, United finalized the permanent transfer of Acosta.