Impemba, who called play-by-play, and color commentator Allen apparently got into the altercation following the Tigers' game at Chicago's Guaranteed Rate Field on September 4.
Sources told Local 4 that Impemba left the broadcast booth at some point and Allen followed, assaulting Impemba from behind and choking him.
Local 4 sources are reporting both Mario Impemba and Rod Allen will not return to call games for Fox Sports Detroit.
Meng Hongwei: the ex-Interpol chief caught in China's anti-graft drive
Meng had been reported missing by his wife after traveling last month from France, where Interpol is based, to China. Chinese officials appeared to be scrambling to respond to an unfolding scandal.
Impemba and Allen did not appear on air during any Tigers telecasts for the remainder of the season. During the last month of the season, Matt Shepard and Kirk GIbson called the games for TV.
"We have not commented because Fox Sports Detroit is handling this professionally and thoroughly".
Shepard, a mainstay in the Detroit sports media scene for almost 30 years, won the Detroit Sports Broadcasters Association's Ty Tyson Award for excellence in sports broadcasting this year.