|Center / Forward|
April 17, 1948|
|Died||July 6, 1981(aged 33)|
|Listed height||6 ft 1 in (1.85 m)|
|Listed weight||185 lb (84 kg)|
|College||University of the Philippines|
|PBA draft||1975 / Elevated|
|Selected by the Toyota Comets|
|1978–1979||Toyota (assistant coach)|
|1979–1980||Toyota (head coach)|
|Career highlights and awards|
As head coach:
A 6'1" center/forward, he played for the UP Fighting Maroons in the UAAP. In the MICAA, Acuña played for the MERALCO Reddy Kilowatts until it disbanded in 1972. He joined the newly formed Toyota Comets in 1973, along with MERALCO teammates Alberto Reynoso, Orlando Bauzon, Robert Jaworski and Francis Arnaiz. He continued with the Toyota team when the franchise transferred to the Philippine Basketball Association in 1975.
Acuña retired from active play after the 1978 PBA All-Filipino Conference and began serving as assistant coach for Toyota. On December 11 1979, he replaced Dante Silverio as Toyota head coach after Silverio resigned when management decides to reinstate Ramon Fernandez, Estoy Estrada and Abe King for Game 2 of the ongoing PBA Invitational Conference finals. Acuña steered the team to the title against arch-rivals Crispa. This was Toyota's sixth title and Acuña's only PBA championship as head coach.
On December 11, 1980, Toyota was playing against the Crispa in Game 3 of the 1980 PBA All-Filipino Conference Finals. During half time, Acuña was fired by team manager Pablo Carlos Jr. for refusing to heed the latter's request to field Robert Jaworski. Toyota won that game, preventing a Crispa sweep of the tournament. The Redmanizers would eventually clinch the title by wrapping up the series the following game.
Acuña committed suicide on July 6, 1981 by ingesting a lethal dose of insecticide. The next day, Toyota had a scheduled game against Crispa during the semi-final round of the 1981 PBA Open Conference. The team appeared for the game with a piece of black stripe on their jerseys as a sign of mourning. Seemingly affected by the shocking news, the Super Diesels lost to the Redmanizers, 133-118.