article: Manny Pacquiao has a better chance of beating Floyd Mayweather now than he did in 2010, claims his trainer Freddie Roach. The pair came close to agreeing a big-money bout five years ago but it eventually fell through, leaving the boxing world waiting and wondering whether they would ever meet. But after half a decade of speculation, the pair will finally go head-to-head in Las Vegas on May 2 - and Roach believes his man will have the advantage at the MGM Grand. Manny Pacquiao poses with his family and author Nik Vujicic in a photo posted to his Twitter account . Floyd Mayweather continues his training as he prepares to face Pacquiao after years of speculation . Pacquiao's trainer, Freddie Roach, believes his man is ready to beat Mayweather in Las Vegas on May 2 . Asked whether the 2010 or 2015 version of Pacquiao would have a better chance of victory against the unbeaten Mayweather, Roach told boxingscene.com: 'That is an interesting question because there are obviously trade-offs between the two versions of Manny. But I am convinced that the 2015 model is the more formidable fighter for a few reasons. 'Back in 2010, Manny was still growing into a welterweight. His first two welterweight fights were against Oscar De La Hoya in 2008 and Miguel Cotto in 2009 where he only weighed 142 and 144 pounds respectively, and in between he dropped down to 138 to fight Ricky Hatton. 'Floyd has been campaining as a welterweight since 2005 and weighed 150 in his fight against De La Hoya so that might have given Floyd an advantage. I still like Manny's chances in that fight but I think the Manny of today has a lot more in his favour. Pacquiao is better equipped to beat Mayweather now than he was in 2010, according to his trainer Roach . Mayweather is looking to extend his 47-fight unbeaten streak when he meets Pacquiao next month . The pair will go head-to-head in a $300million mega-fight at the MGM Grand in Las Vegas on May 2 . 'In 2010 the two-year age difference between the fighters was not significant to either, but that's not true today. Floyd at 38 is doing things he didn't do in the past. Floyd is a defensive genius but he has always depended on his legs to perform and you can see now that his legs do not have the same spring or fluidness of his earlier years. Mayweather remains the bookmakers' favourite for the $300million mega-fight next month but Roach is adamant that Pacquiao is primed to cause an upset. 'The 2015 version of Manny is more mature, smarter and less reckless than the 2010 version,' said Roach. 'He will be treating the ring like a chess board anticipating Floyd's moves - ready to cut him off and attack every time he creates an opening. 'I have all the confidence in the world that Manny is going to knock Floyd out on May 2.'
highlights: Floyd Mayweather and Manny Pacquiao came close to a fight in 2010 .
  The pair will finally meet in at the MGM Grand in Las Vegas on May 2 .
  Trainer Freddie Roach believes Mayweather is slower than he used to be .
  Pacquiao will attack Mayweather and knock him out, according to Roach .
  WATCH HERE: Mayweather vs Pacquiao official advert released .
  Amir Khan: Mayweather and Pacquiao haven't even heard of Kell Brook .
  CLICK HERE for the latest Mayweather vs Pacquiao news .
prediction: Manny 
   better chance 
   Floyd Mayweather now than he 
   2010 
   claims his 
   The 
   to 
   and Roach 
   have the 
   Pacquiao after years of speculation . Pacquiao' s trainer, Freddie Roach, believes his man is ready to beat Mayweather in Las Vegas on May 2 . 
   2015 
   unbeaten 
   Manny was 
   Floyd has 
   will go head - to - head in a 
   fight at the MGM Grand 
  