TWIN terrors Jermall and Jermell Charlo were born just a minute apart, but their latest race is for a version of the world light-middleweight title.
The pair have become regular faces on BoxNation, and younger brother Jermell (above, right) stars on the Channel of Champions this Saturday when he boxes Vanes Martirosyan over ten rounds in Las Vegas
Jermell, 24, has done little wrong so far winning all 25 professional contests, with his best victory coming in January last year, when he outpointed perennial contender Gabriel Rosado.
Jermall has had just 20 contests, but also boasts a 100% record with 16 of those wins inside the distance. His progress has been slower although he did turn professional in September 2008.
His sibling started punching for pay ten months earlier after a toe injury delayed Jermall's career.
He also boxes on Saturday's card at the Palms Casino Resort in an eight rounder against local fighter Michael Finney.
Even though his brother has arguably boxed in better company he has been due to challenge Carlos Molina for the IBF title 12 months ago.
In a devastating blow for Jermall (above, left). The fight collapsed when Molina was arrested five days before they were due to clash on the Saul Alvarez-Alfredo Angulo bill.
Jermell also had a world title let down when WBO title holder Demetrius Andrade refused to fight him in December after a cash bust up, although there has been talk the fight may be salvaged.
The competitive pair were eight-years-old when they started boxing in hometown Houston, and trainer Ronnie Shields stopped them sparring each other more than five years ago because they went at it too hard
He added: "We aren't in the business of fighting each other. We are in the business of dominating just like the Klitschkos do.
"We're teammates, but when we did spar it got crazy."
The spars may have stopped but the competition hasn't and they train alongside each other every day at Shields Plex Gym to stay motivated.
Jermall says: "Growing up, he was like my competition. It was always like I always had somebody pushing me to the top."
They are also putting time and investment back into their local community with the Charlo Amateur Boxing Program, where Jermell is one of the coaches.
Jermall was busier as an amateur boxing around 75 times compared to his brother's 63, losing just six.
During Jermell's amateur days, he was just 15 years old when he won a bronze medal at the Junior Olympics.
They are already dwarfing their amateur glory and despite some title setbacks their chances of landing a world title tilt look certain.
Jermell is ranked three by the WBC, two by the IBF, is mandatory challenger for Andrade's WBO belt
Jermall holds the number one spot for Cornelius Bundrage's IBF bauble and could face the ageing champion later this year.
And what chance they become world champions at the same time? They would emulate the Klitschko brothers although being twins it would become even sweeter.
It would be a piece of history unlikely to ever be matched.