Heaney spent 12 seasons in the league, six and a half of which were with the Los Angeles Angels. He was part of the 2023 Texas Rangers squad that would go on to win the World Series.
The lefty finished his career with a 56-72 record, 4.57 earned run average, and 1156 strikeouts through 1,136.2 innings, giving up 1113 hits and 339 walks.
After originally being drafted in the 24th round of the 2009 MLB Draft by the Tampa Bay Rays, Heaney opted to go to college and play at Oklahoma State University. In 2013, he re-entered the draft and was selected ninth overall by the Miami Marlins.
Heaney would only pitch in seven games (five starts) for the Marlins during his 2014 debut season before being sent off to the Angels, where he'd spend the next seven years (2015-2021).
He would spend the remaining half of 2021 with the New York Yankees before signing a deal with the Los Angeles Dodgers in 2022.
He'd stay with the Rangers for a couple of years (2023-2024) before going off to the Pittsburgh Pirates (2025), the same year he was dealt back to the Dodgers and only pitched in one game.
Heaney finished the 2025 season with a 5.52 ERA through 27 games (23 starts) in 122.1 innings of work.