An accidental headbutt in the fourth round opened up a cut above Perez’s right eye.
Riovalle took everything in stride, coming forward or standing his ground, until a well-placed liver shot put him down in a delayed reaction in the seventh frame. A grimacing Riovalle failed to beat the 10-count as referee Lou Moret declared Perez the victor at 1:14 of the round.
Former WBC featherweight and super featherweight champion Takahiro Ao, 24-3-1 (11), dropped the usually very durable Hardy Paredes with a right hand as Hardy came in wide early in the second round of the co-featured bout. Moments later, Ao finished the job by catching Paredes flush with a counter left which sent the Chilean fight crashing back unto his back, for the stoppage at 2:51 of the stanza.
With the loss, Paredes saw his record fall to 16-12 (10).
Riverside’s Saul Rodriguez, 10-0-1 (7), remained undefeated by outfoxing and making an awkward and tough Dominic Coca, 8-4 (2), quit after three rounds of a scheduled six.
Rodriguez used his better technique, jabs and power to set up a barrage of sharp shots at the end of the third round, leaving Coca doing a discombobulated dance to his corner. Referee Jerry Cantu called the fight off before the fourth round as Coca was in no shape to continue.
Light heavyweight Trevor McCumby, 12-0 (10), beat up on Reynaldo Rodriguez, 6-7-1 (3), for 29 seconds against the ropes as Rodriguez sat on the ropes, putting up zero offense, leaving referee Wayne Hedgepeth no choice but to halt the battering. McCumby walked back to his corner, disgusted with the non-effort put up by his foe.
Featherweight Pedro Duran, 2-0 (2), wiped out Anthony Briones, 0-3, with a right hand in the first round.
Ukrainian cruiserweight Vyacheslav Shabranskyy, 4-0 (3), landed everything but the kitchen sink against a very tough Daquan Morgan, 3-2-1 (3), through their scheduled six rounds.
Shabranskyy landed plenty of slapping head and body shots to easily put rounds in the bank.
Morgan got his best round in the fifth as he caught Shabranskyy with head shots that made him stagger briefly.
Scores were 60-54 (twice) and 59-55.
In the evening’s opener, Cuban heavyweight southpaw Yuniel Norticos, 15-0 (15), got his distance and landed hard body shots en route to a stopping Keith Barr, 10-4 (3), at 1:19 of the second frame of a scheduled eight.