Former world champion Luis Collazo (39-9, 20 KOs) retired after losing to Angel Ruiz (18-2-1, 13 KOs) in the main event in a ten-round junior middleweight bout on Wednesday, April 19 at the ProBox Events Center in Plant City, Florida.
Ruiz turned it on in the first minute of the fight and Collazo was hurt a little bit as he bounced off the ropes. Collazo settled in and put together combinations.













