Photos from the StubHub Center in Carson, Calif. as underdog Kell Brook (33-0, 22 KO’s) pulls off a big upset in claiming the IBF welterweight championship from former champ Shawn Porter (24-1-1, 15 KO’s) on Showtime’s airwaves. Porter was aggressive early but Brook settled down and had great success in the second half of the matching, winning by scores of 117-111, 116-112, and 114-114 after 12 rounds.

Chris Robinson can be reached at CRobinson@hustleboss.com