Undefeated super bantamweight prospect Cesar Diaz (7-0, 6 KOs), 20 years old, was killed a single-car crash Friday night, November 24 in Palmdale, California, according to police reports.

The crash was reported at 8 p.m. in the area of 50th Street East south of Avenue L, said Los Angeles County Sheriff’s Department Det. Eduardo Saucedo.

Diaz was pronounced dead at the scene at 8:17 p.m., said Lt. David Smith of the Los Angeles County Department of Medical Examiner-Coroner.

Diaz was driving a red 2016 Honda Accord south on 50th Street East when he lost control of the car, Saucedo said. He drifted onto the oncoming traffic lane and into a dirt shoulder before the car struck a large tree, the sheriff’s detective said.

As a result of the crash, Saucedo said, the Honda rolled onto the passenger side, ejecting the driver. Diaz was pronounced dead at the scene and a female passenger in her 20s, who reportedly was his girlfriend, was taken to Antelope Valley Hospital with multiple fractures.

The intersection was closed for the investigation and was reopened at 2:15 a.m. Saturday.

Diaz turned pro in July 2016. He signed a promotional deal with Golden Boy Promotions in April of the same year. He was last seen in action back on November 2, after scoring a TKO win as part of the Golden Boy on ESPN televised card, which was headlined by Jesus Soto Karass vs. Juan Carlos Abreu.

Diaz is a decorated amateur with an overall record of 104-11. He was the winner of the 2012 Silver Gloves National Championship, the 2015 Adidas National PAL title, The Desert Showdown in 2009, 2013 and 2015, and several other tournaments.

Diaz has defeated some of the top prospects in his weight class including 2016 United States Olympians Shakur Stevenson and Carlos Balderas, as well as Danny Gonzalez.

In 2013, Diaz went to the Junior Olympic regionals and was champion in his weight class, but due to his citizenship, he could not move on to the nationals. Undeterred, Diaz continued to fight, win and impress, earning him a USA Boxing number three ranking in the 123-pound weight class.