"El Charro"

Hector Aldana

Welterweight

4-1-0 (V-D-E)

Irene Aldana

Women's Bantamweight

9-4-0 (V-D-E)

Jose Aldo

Featherweight

27-4-0 (V-D-E)

JJ Aldrich

Women's Strawweight

7-2-0 (V-D-E)

Olaf Alfonso

Welterweight

0-0-0 (V-D-E)

Abdul Razak Alhassan

Welterweight

10-1-0 (V-D-E)

Sultan Aliev

Welterweight

14-3-0 (V-D-E)

"Almighty"

Arnold Allen

Featherweight

13-1-0 (V-D-E)

"Thominhas"

Thomas Almeida

Bantamweight

21-3-0 (V-D-E)

"The Underground King"

Eddie Alvarez

Lightweight

29-6-0 (V-D-E)

Joel Alvarez

Lightweight

17-2-0 (V-D-E)