Efrain , 19 , Eric , 17 , Omar , 13 , and Diana , 15 , are relying on individual willpower and their collective discipline to push into the boxing limelight .
Both parents coach their four children as a team of amateur boxers .
Efrain , 19 , Eric , 17 , Omar , 13 , and Diana , 15 , are relying on individual willpower and parents ' collective discipline to push into the boxing limelight .
Both parents coach their four children as a team of amateur boxers .