Manuel Alcides Acosta Molinar (born May 1, 1981) is a Panamanian professional baseball pitcher.

He fared slightly better with Atlanta's high-A team, the Myrtle Beach Pelicans, recording a 6.39 ERA and winning two games.

On August 10, 2007, Acosta was called up to the big leagues after Octavio Dotel hit the DL.

He made his big league debut on August 12 pitching a scoreless inning of relief against the Philadelphia Phillies.

But after Rafael Soriano and Peter Moylan were quickly placed on the DL, Acosta found himself in the closer role where he has struggled.

[citation needed] On February 20, 2018, Acosta signed with the Sultanes de Monterrey of the Mexican League.

Acosta did not play in a game in 2020 due to the cancellation of the Mexican League season because of the COVID-19 pandemic.

Acosta's delivery twists his body toward first base, giving him a release point almost directly "over the top.