Manny Pacquiao takes on Timothy Bradley tonight at the MGM Grand Garden Arena in Las Vegas, Nevada.
The fight airs live on pay-per-view in North America and also in the United Kingdom.
Pacquiao (54-3, 38KO's) is the huge odds-on favourite with bookmakers to beat 'Desert Storm' Bradley (28-0, 12KO's).
For years, 'Pac-Man' has been known as one of - if not the - sports best pound-for-pound fighters in the world. But tonight, Bradley has the chance to cause a huge upset against the fighter who many hope will go on to fight Floyd Mayweather later this year.
How to watch Pacquiao vs. Bradley:
TV channel: HBO PPV (US, $54.95-64.95), Top Rank TV (streaming online, $54.95), Primetime (UK, £14.95), Main Event (Australia, $39.95-49.95), Sport 2 (Hungary)
Main Card starts: 20:00 EST (02:00 BST)
Main Event starts: 23:00 EST (05:00 BST) approx
Official fight card:
Welterweight: Manny Pacquiao (c) vs. Timothy Bradley
Welterweight: Mike Jones vs. Randall Bailey
Super Bantamweight: Guillermo Rigondeaux (c) vs. Teon Kennedy
Junior middleweight: Jorge Arce (c) vs. Jesus Rojas.