Guillermo Gonzalez, better known as Pedro "El Rockero" Alcázar (16 September 1975 in Zapayal, Panama – 24 June 2002) was a Panamanian boxer who won the WBO Super flyweight championship, and then sustained fatal injuries in the ring.
Alcázar turned professional in 1995 & compiled a record of 22–0–1 (1 NC) before beating Adonis Rivas, to win the WBO super-flyweight title.
He lost his title to Fernando Montiel in Las Vegas, Nevada on 22 June 2002,[1] in what would turn out to be his final bout.
The boxing authorities have discussed compulsory medical testing for boxers up to 48 hours after a fight finishes, longer than heretofore.
There was already concern following the Michael Watson case, which in the United Kingdom established the principle that the authorities have a wide responsibility for the health and safety of boxers (and also spectators).