WBA/IBF junior welterweight champion Lamont Peterson (30-1-1, 15KOs) told Sky Sports' Ringside that he plans prove once and for all who the better fighter really is, when he defends his title against Amir Khan (26-2, 18KOs) at the Mandalay Bay in Las Vegas on May 19.

The is past December in Washington, D.C., Peterson won a controversial twelve round split decision to unseat Khan for his two title belts. There were complaints afterwards, with Khan getting upset with the officiating - because the referee penalized the British star for repeated pushing.

"It was a great feeling - to finally do something that you've been trying to do for 17 years. It was a long road and just at that moment you just feel like all the hard work paid off. I was the one in there actually getting pushed so I know better than anyone that they should have took points from him. For me, they should have DQ'd him," Peterson said.

"I'll make people see that I am the better fighter. In my mind I know; I knew before we went into the first fight. I confirmed it after the first fight and I think going into the second fight we will really, really show people I'm the better fighter."