Amir Khan walked into a gym for the first time at age 8 and was hooked. Now, the former WBA and IBF light-welterweight champion is one of the top contenders in the world.

Amir Khan: I Am A Fighteri

Keith Thurman talks about his early days of boxing, his climb through the amateur ranks, and the untimely death of his trainer Ben Getty.

Keith Thurman: I Am A Fighteri

"Boxing was a way out" for living legend Bernard Hopkins. The Philly native remembers the dark moments from his past, and the self-determination which propelled him to the top of the sport.

Bernard Hopkins: I Am A Fighteri

Hear Deontay Wilder's story and be sure to watch him in action as he defends his WBC Heavyweight World Championship against Eric Molina on Saturday, June 13th at 9PM ET/6PM PT on SHOWTIME.

Deontay Wilder: I Am a Fighteri

Adrien Broner has been labeled by many as the future of boxing. His flashy, outspoken personality is polarizing. What you may not know, is what the three-time world champion went through to get where he is today.

Adrien Broner: I Am A Fighteri

Peter Quillin started boxing as a way to handle himself on the streets of Grand Rapids before moving to New York. "Nobody ever told me I was going to be a champion" remembers Quillin looking back on the unlikely road which led him to be a champion.

Peter Quillin: I Am A Fighteri

Philadelphia native Danny "Swift" Garcia talks about growing up Puerto Rican in Philly, stepping into the ring at the age of 10, and moving up from amateur to world class champion.

Danny Garcia: I Am A Fighteri

As a heralded amateur Gary Russell Jr. was poised for Olympic glory, but he fell ill and was unable to compete. Now, as an undefeated professional, he's positioned to become a champion.

Gary Russell Jr.: I Am A Fighteri

The inspirational story of Brooklyn-born boxer, Daniel Jacobs, whose promising career was almost cut short by cancer. Hear from Jacobs about his battle to overcome his condition and his spectacular return to the ring.

Daniel Jacobs: I Am a Fighteri

A profile of Cleveland-native Shawn Porter who started boxing at the age of four, and under the wing of his father, rose to be one of boxing's most exciting young champions.

Shawn Porter: I Am a Fighteri

Sammy Vasquez Jr. shares details from his admirable experience in the United States military and how it prepared him for the ring. Watch Vasquez in action Sunday, June 21st at 4p ET/PT on Premier Boxing Champions on CBS.

Sammy Vasquez Jr.: I Am a Fighteri

Top middleweight prospect Antoine Douglas details his childhood adversity and how boxing provided him the discipline he needed to get his life in the right direction.

Antoine Douglas: I AM A FIGHTERi

Undefeated top contender Julian Williams discusses his childhood in Philadelphia, amateur boxing career, and becoming on the verge of a title shot.

Julian Williams - I AM A FIGHTERi

IBF Super Middleweight World Champion James DeGale discusses his childhood in London, winning a gold medal, and becoming one of boxing's most exciting champions in the super middleweight division.

James DeGale - I AM A FIGHTERi