Complex sentence: In addition to being military training and mustering facility, the Armory has long been used as a sports arena for boxing including bouts with James J. Braddock, Sonny Liston, and an match with Mohammed Ali and then Mayor of Jersey City Thomas F. X. Smith.
Split into simpler sentences: In addition to being military training and mustering facility, the facility has long been used as a sports arena. The current armory has hosted many bouts, including those with James J. Braddock, Sonny Liston, and an match between Mohammed Ali and then Mayor of Jersey City Thomas F. X. Smith.