Amir Khan agrees with boxing experts who praised his performance against Devon Alexander in Las Vegas on Saturday night.

After only his second fight at welterweight he looked ahead at a chance to fight undefeated Mayweather. Khan won every round on one scorecard, all but one on a second and all but two on the third card. He connected on 43 percent of his shots, compared to 20 percent for Alexander.

He consistently beat Alexander to the punch, jabbing his way to victory in the non-title fight. Looking unscathed except for a welt under his left eye. He also showed his much-improved defensive skills, the result of hooking up with trainer Virgil Hunter in September 2012.

Alexander, who looked impressive in his previous fight against Jesus Soto Karass, went into the twelfth round needing a knockout to win. The two were originally scheduled to fight for Alexander's IBF welterweight title in New York a year ago.

“He was the better man tonight,” Alexander said. “My coach told me to get off and I wasn’t getting off. I could have caught him I just didn’t do it tonight. I was supposed to follow the game plan, I was moving good but I just couldn’t move forward and get off.”