One of boxing’s brightest young stars, hard-hitting interim WBA Welterweight World Champion Keith “One Time” Thurman (23-0, 21 KOs) continues to call out the top fighters at 147 pounds. A crowd-pleasing boxer with exceptional power, Thurman is arguably boxing’s most feared and avoided fighter with a host of former world champions among those reluctant to face him. Check out this video to see some of the KO artist’s greatest hits and don’t miss Thurman’s return to the ring against fellow unbeaten European star Leonard Bundu (31-0-2, 11 KOs) on Saturday, Dec. 13, live on SHOWTIME® (9 p.m. ET/6 p.m. PT).