If he continues to end fights in impressive fashion, prospect Omar Aguilar is going to make noise at 140 pounds.

The unbeaten junior welterweight stopped David Alegria in the opening round Saturday night at the Auditorio Municipal in Tijuana, Mexico.

The 20-year-old Aguilar, who stopped nine of his first 10 opponents in the opening round before defeating Emmanuel Herrera by decision in December 2018, stopped Francisco Hernandez in round 3 of his last bout on December 14.

Seconds into the opening round, a sweeping left hook to the head dropped Alegria to the canvas against the ropes. Alegria beat the count, but referee Jose Cobian decided he was not able to continue, stopping the fight at 34 seconds.

The win over the shorter Alegria marked Aguilar’s 12th first-round knockout.

Alegria, who resides in the boxing hotbed of Guadalajara, Mexico, drops to 10-4, 6 KOs. The 24-year-old has now lost three of his last four opponents.

In featherweight action, 19-year-old Alan Picasso of Mexico City dropped Jesus Quijada in round 6 en route to a unanimous decision victory.

Scores were 99-90, 99-90, and 99-89 for Picasso, who made his pro debut at the age of 16.

Quijada, who resides in Hermosillo, Mexico, falls to 16-6-2, 11 KOs. The loss snapped a five-bout unbeaten streak for the 25-year-old Quijada.

The fight card was promoted by Zanfer Promotions and aired live on Azteca TV throughout Mexico.

Francisco A. Salazar has written for Boxingscene since September of 2012 and has covered boxing in Southern California and abroad since 2000. Francisco also covers boxing for the Ventura County (Calif.) Star newspaper. He can be reached by email at santio89@yahoo.com or on Twitter at FSalazarBoxing