Jose Benavidez Jr challenges brilliant WBO Welterweight Champion Terence Crawford on Saturday, live on BoxNation, and is confident he can do what 33 men have failed to do in a boxing ring.

He has been calling out Crawford for more than a year, and is hell bent on causing one of boxing’s biggest upsets of recent times.

Here are eight facts about the Arizona man, who has won all 27 professional fights following a glittering amateur career:

1) He is the older brother by 4 1/2 years of WBC Super-Middleweight Champion, David Benavidez.

2) He was the youngest boxer ever to win the National Golden Gloves Championships, aged 16 in 2009.

3) He is now trained by his dad, Jose Sr, but when he turned professional was with Freddie Roach and sparred with Amir Khan.

4) When he turned professional he was also the youngest boxer, at 17, to be licensed as a professional by the Nevada State Athletic Commission. Top Rank Promotions made an exception for the minimum age requirement of 18 years because of his exceptional talent.

Jose and David Benavidez

5) In August 2016 he was shot while out walking his dog in Phoenix and suffered a serious leg injury. He was told he would never box again. It took him two years to walk, but he was back fighting earlier this year inside 18 months, and showed no effect in two winning fights. "I was losing so much blood I almost died," he recalled.

6) He has spent six months training in Las Vegas for his career-defining fight against Crawford, leaving behind his Arizona home comforts.

7) His sparring partners have included Jose Valenzuela. His dad, Jose Sr revealed: "He's the one I brought personally. He's a natural southpaw and he has that little boxing style. I would never compare him to Terence Crawford, but he can move kind of like that."

8) Benavidez started boxing aged six: "My parents put me in soccer, baseball, and I didn't really like any of those sports. My dad would always watch boxing, so I told him to take me to the gym one day and I just fell in love with the sport.”