Selah's Andrew Murphy, left, takes on Nigel Farmer in a match last month in Gadsden, Ala. (Photo courtesy Janet Wohler/One One Six Boxing Promotions)

LOS MOCHIS, MEXICO — Selah native Andrew Murphy continued an impressive start to his pro boxing career Thursday night in Mexico.

A last-minute change of opponent and some other unexpected challenges didn't seem to bother Murphy (3-0), who said he never really took a hit for the second consecutive fight. His left hook connected for another first-round knockout, this time against Mexico's Roberto Valdez, an experienced middleweight with a 10-12-1 record who once boxed against a world champion.

"It shows that my training's right and I'm with the right people," said Murphy, a 21-year-old East Valley graduate who trains in Pensacola, Fla. with legendary former boxer Roy Jones Jr. "Roy was pretty happy because we didn't really have time to warm up."

Murphy, a Junior Golden Gloves national champion as an amateur, opened his professional career with a win over Jonathan Gonzalez by unanimous decision in March. He followed that by knocking out Nigel Farmer in the first round of a fight last month.