Mayweather works hard in the gym as he prepares to go head-to-head with Pacquiao at only press conference before mega fight

Floyd Mayweather's preparations for his upcoming fight with Manny Pacquiao have started to gather pace with the undefeated American beginning his second week of training. The 38-year-old, who will go toe-to-toe with Pacquiao in Las Vegas on May 2, has uploaded a video on to his official Instagram account which shows Mayweather training inside the boxing ring and working on his fitness ahead of the mega fight. Mayweather has been providing his fans with regular updates since his fight with Pacquiao was officially announced on February 21.