Gary Russell Jr./Associated Press file photo

Gary Russell Jr. on Saturday night decked Jhonny Gonzalez three times, stopping in the fourth round to take Gonzalez’s featherweight world title at Palms Casino in Las Vegas.

It was the second shot at a major title for Russell, of Capitol Heights, Md. He fought Vasyl Lomachenko for a vacant title this past June at StubHub Center, but lost a majority decision.

Russell, 26, is now 26-1 with 15 knockouts.

Gonzalez, 33, was in his second reign as featherweight champion. The Mexico City native had won this title by knockout out Abner Mares of Hawaiian Gardens in the first round in August 2013 at StubHub. Gonzalez successfully defended that belt twice before running into Russell.

Gonzalez is 57-9 with 48 knockouts.

In the semi-main event, Jermell Charlo (26-0) of Houston won a 10-round unanimous decision over Vanes Martirosyan (35-2-1) of Glendale. Charlo won by scores of 96-94, 96-94 and 97-93.