Guillermo Rigondeaux vs. Robert Guillen
2009-07-17 : Guillermo Rigondeaux 123 lbs beat Robert Guillen 122 lbs by TKO at 2:57 in round 1 of 4
- Location: Planet Hollywood Resort and Casino, Las Vegas, Nevada, USA
- Referee: Kenny Bayless
- Aired On: ESPN Friday Night Fights
- Guillermo Rigondeaux 1-0 (1 KO) vs. Robert Guillen 4-2-2 (0 KOs)
- Fight was on the undercard of Breidis Prescott vs. Miguel Vazquez.
- Notables in attendance were Mike Tyson, Joel Casamayor, Yuriorkis Gamboa, Sergio Mora and Jason Litzau.
Rigondeaux came out looking to counter and chose his shots well. Late in the opening round, a "laser-like targeted body shot" to the liver floored Guillen. Writhing in pain, Guillen made no attempt to get to his feet and the referee, without finishing the count, waved an end to the bout.