In a clash of female middleweight world champions, Claressa Shields (9-0, 2 KOs), unified the all four of the widely recognized world titles by beating Christina Hammer (24-1, 11 KOs) on Saturday night at Boardwalk Hall in Atlantic City. The bout was viewed as a pick’em, and a close match,

Undefeated middleweight world champions Claressa Shields and Christina Hammer will meet on Saturday, April 13 live on SHOWTIME to crown the women’s undisputed 160-pound world champion. The blockbuster unification from Boardwalk Hall in Atlantic City, N.J. will be the main event of SHOWTIME BOXING: SPECIAL EDITION, live at 9 p.m.