Glena Avila, 36, will do anything for her sport.
Avila is the subject of a newly released Showtime documentary about the single mother's journey to becoming a professional cage fighter.
An emotional clip released shows Avila's battle to lose one pound in 20 minutes so that she can weigh in at 116 pounds and qualify for her next fight. Willingly dehydrated, the battle-hardened Avila jumps rope and wrestles to lose that last bit of water weight.
She barely makes it into the weight class, and it's hard to look into Avila's razor sharp stare. She has the focus of a champion.