Floyd Mayweather and Robert Guerrero had done battle over eleven rounds and came out for the final round, both men certainly aware that Guerrero couldn't win without scoring a last minute knockout.
Knowing that, Mayweather still chose to pick spots between movement to land a right hand. Mayweather then landed a one-two combo, followed by sliding under Guerrero's return shot, the skill difference on display one more time in a bout that has shown it plenty.
Guerrero got in with a few right hands and started trying to rough him up in the clinch again as well.
Floyd spent a lot of this round in "prevent defense" just trying not to get caught with anything and may have actually given it up in the process.
SB Nation scorecard
Round: 10-9 Guerrero
Fight: 119-109 Mayweather
Floyd Mayweather Jr. wins by unanimous decision
We'll have more, including complete results and analysis for the main event at our Mayweather vs. Guerrero Live Results Story Stream.