Floyd Mayweather defeats Robert Guerrero on points to make his record 44-0 As Mayweather had stated 72 hours before the contest: "You don't just get to the pinnacle without facing and fighting the best competition. I just feel like I was before my time. I beat everybody in the 90s, and everyone in the 2000s. Now here we go 17 years later. My main focus is to win, and I'm always going to be able to control the tempo. He delivered that credo to the letter. What was clear from the first bell is that Mayweather's skills are not diminishing, even at the age of 36. It was more a clinic than a real contest. He dominated Guerrero throughout in what was a one-sided contest. Mayweather punished his rival in the eighth round, but picked him off early with the right lead. Mayweather - always defensively savvy - opened up his arsenal as the fight progressed, scoring with the counter right lead, uppercuts and jabs. Guerrero was made to miss time and again, and as he tried to work in close, was tied up by the champion. There was little to fault in Guerrero's valiant attempt, but looked utterly outclassed. This was Guerrero's second defeat as a professional, dropping his record to 31-2. Mayweather, who showed a touch of class in asking his father Floyd Snr not to remonstrate with Guerrero's corner after the fight, revealed that he had damaged his right hand in the contest, possibly around the seventh or eighth round. Mayweather was back working with his father in his corner for the first time in 13 years. I'm back working with my father. My defence was there from him - the less you get hit the longer you last. You have to continue to box smart, and if the knockout comes take it. I was looking for the knockout, but I hurt my right hand. I don't know exactly which round. Everyone was saying that at the age of 36, my defence wasn't sharp enough after the [Miguel] Cotto fight, but I proved myself. Cotto is a future hall of famer. I've been in there with some of the best. All I want to do is to continue to give the fans exciting fights, and I feel bad not to get the finish tonight, but I hurt my right hand," he explained. Mayweather showed his swollen right hand: He was pressing the attack, but I had young, strong guys pushing me ahead of this fight, and that's what I needed. I had a tough battle with Guerrero, he's still a true champion, with lots of heart. He gave it his best, I gave it my best. "I landed some good shots on him," Guerrero said. He's a great fighter. He's slick and quick. Too slick, and too quick, for thelatest in a long line of challengers who have attempted to dethrone Mayweather. This was the first in a six-fight deal for Mayweather with US broadcaster Showtime, after which his career earnings are expected to exceed $500 million. The second fight on the Showtime portfolio could be in September against the unbeaten Mexican Saul 'Canelo' Alvarez. "We'll have to see what my team says," explained Mayweather.