CHICAGO (WLS) -- Chicago Police Bomb and Arson Unit detectives are investigating an early Friday fire at U.S. Cellular Field that left a firefighter injured.
The fire was reported about 2:25 a.m. in a first-floor storage unit near a kitchen at the stadium, located at 333 W. 35th St. It was out shortly after 3 a.m.
The firefighter was taken to Mercy Hospital and Medical Center with injuries that were not thought to be life-threatening, according to fire media.
The Chicago White Sox are scheduled to play their season home opener Friday afternoon.
Police say it is standard to call the Bomb and Arson Unit in for fires at high-profile locations.
The White Sox said at the time of the fire staff were present at the ballpark, which is staffed 24 hours, but that none was injured.
The Sun-Times Media Wire contributed to this report.