Mohegan Sun, CT. - Heavyweight contender Otto Wallin recorded a TKO at 2:32 of the fifth round against Travis Kauffman, who re-tore his left labrum at the start of the fifth round and was unable to lift his arm. Referee Michael Ortega signaled the end of the fight and afterwards Kauffman announced he was retiring from boxing, just days ahead of his 35th birthday. (photos by Amanda Westcott)

The 29-year-old Wallin (21-1, 14 KOs) who had a four-inch height advantage over Kauffman, said he felt for the injured Kauffman, but was dominating the fight.