Here’s a tribute to some of the sport’s youngest stars-in-the-making. Not even old enough to buy a beer in many parts of the United States, these young warriors are already making waves in the hardest of all sports:

1) Saul Alvarez (Mexico) Age: 20, Record: 33-0-1, 25 KOs

Titles Held:

WBA Fedecentro welterweight title
NABF welterweight title
WBO Latino welterweight title
WBC Youth World welterweight title
WBC Silver light middleweight title

2) Marvin Sonsona (Philippines) Age: 19, Record: 14-1-1, 12 KOs

Titles Held:

WBO super flyweight title
WBO Oriental flyweight title
WBO Asia Pacific Youth flyweight title

3) Adrien Broner (USA) Age: 20, Record: 16-0, 13 KOs

Titles Held:

WBC Youth Intercontinental super featherweight title

4) Chris Avalos (USA) Age: 20, Record: 16-0, 13 KOs

Titles Held:

WBO NABO bantamweight title

5) Stephane Jamoye (Belgium) Age: 20, Record: 18-0, 8KOs

Titles Held:

EBU-EU (European Union) bantamweight title
WBC Youth World bantamweight title

6) Johnriel Casimero (Philippines) Age: 20, Record: 14-0, 8KOs

Titles Held:

interim WBO light flyweight title
WBO Asia Pacific light flyweight title

7) Jesus Ruiz (Mexico) Age: 20, Record:  23-2-2, 18 KOs

Titles Held:

interim WBC Latino bantamweight title

8.) Jason Pagara (Philippines), Age: 18, Record: 23-1, 12 KOs

Titles Held:

WBO Asia Pacific Youth lightweight title

9) Pablo Cesar Cano (Mexico) Age: 20, Record: 20-0-1, 15 KOs

Titles Held:

NABF light welterweight title

10) Frankie Gomez (USA) Age: 18, Record: 4-0, 4 KOs

Titles Held:

None