The Arizona Diamondbacks fired general manager Kevin Towers, the Arizona Republic reported Friday.
An official announcement was expected later Friday, according to the newspaper.
Towers, 52, had been the team’s general manager since September 2010. Arizona has baseball’s third-worst record at 59-81 despite a franchise-record $112.3 million payroll.
The D-Backs are 315-311 (.503) under Towers but have not made the postseason or finished over .500 since winning the National League West in 2010.
In May, the Diamondbacks hired Tony La Russa to the newly created position of chief baseball officer to oversee Towers and the baseball operations department.
At the time of the hiring, managing general partner Ken Kendrick and team president Derrick Hall said that it would be up to La Russa to decide the futures of Towers and manager Kirk Gibson.
Following the 2013 season, the D-backs elected not to pick up the 2015 contract options on Towers and Gibson. But just before spring training opened, the team signed the pair to extensions of unspecified lengths.