SAN JUAN, PR (December 10, 2024) –Boxlab Promotions’ undefeated super featherweight prospect Carlos De Leon Castro (3-0, 2 KOs) thrilled his hometown fans this past Saturday with a spectacular first-round knockout of Jose Alfredo Guevara (2-3-1, 1 KO) at the Coliseo Roberto Clemente in San Juan, Puerto Rico. The scheduled 4-round bout was part of a DAZN-broadcast event promoted by Universal Promotions and Matchroom Boxing.