This Saturday’s World Championship Boxing tripleheader begins on HBO at 8:30 p.m. ET/PT with a 12-round heavyweight bout between Chris Arreola and Bermane Stiverne from Ontario, California.

The action shifts to Club Atlético Vélez Sarsfield in Buenos Aires, Argentina for the middle fight of the telecast between Luis Carlos Abregu and Antonin Decarie in a 12-round welterweight fight. In the main event of the evening, Sergio Martinez will defend his middleweight title against Martin Murray.

The weights from Argentina:

Sergio Martinez: 159.4

Martin Murray: 159.6

Luis Carlos Abregu: 147.0

Antonin Decarie: 147.0