Gila River Arena in Glendale, Arizona - In the ESPN televised co-feature, Isaac "Royal Storm" Dogboe made the first defense of his WBO junior featherweight title with a first round demolition of Japanese challenger Hidenori Otake.
Otake went down twice before the contest was waved off in the first round.
Dogboe (20-0, 13 KOs) blasted down Otake (31-3-3) with a good hook in the second minute of the first. Otake made it up, but another series of shots made his gloves touch the mat for the second knockdown - and the a nother flurry of big shots forced the referee to step in and wave off the fight.
Otake had never been stopped before in his career. His last defeat came in 2014, when he lost a twelve round decision to then WBA champion Scott Quigg.
Dogboe has now stopped his last five opponents.
Back in April, Dogboe came on the world scene when he got off the mat to score an eleventh round knockout of previously undefeated Jessie Magdaleno to capture the WBO crown. And prior to that bout, Dogboe had knocked out the dangerous Cesar Juarez in five rounds in a final WBO eliminator in January.
2016 Olympic gold medalist Robson Conceicao moved his record to 9-0 with a dominant unanimous decision over Edgar Cantu (7-5-2). Conceicao was simply levels above his overmatched opponent and won by scores of 80-71 on all three cards.
Conceicao was warned twice for punches below the belt line but dominated ever round of the fight. The Brazilian looked a lot bigger than Cantu and the difference in power was evident with every punch landed.
Conceicao took his time breaking down Cantu and dropped him early in the 6th round with a combination. Conceicao couldn't miss with his overhand right and battered him the rest of the round. Cantu showed a lot of heart staying on his feet until the end of the 8th and final round.