Last week, British superstar Amir Khan threw water on the undefeated record of WBO welterweight champion Terence Crawford.

According to Khan, who suffered four defeats in his career, he would also sport an unbeaten record if matched against the same level of opposition as Crawford.

Khan will challenge Crawford for the WBO crown on April 20 at Madison Square Garden in New York City... in a fight where Khan is widely seen as an overwhelming underdog. The event will be carried by ESPN Pay-Per-View.

Khan called on the experts to examine both records to compare the quality opponents on both sides.

"Look at my resume, look at the people I’ve beaten. My resume is a lot better than Terence Crawford's. I've fought better opponents, beaten better opponents. Okay fine, he’s unbeaten, but I’m sure I would be unbeaten if I fought all the guys he did," Khan told TMZ Sports.

Crawford reacted to Khan's comments - stating that he already handled a mutual opponent with ease, an opponent who on the other hand knocked Khan out in one minute.

"I think he’s just blowing smoke up his ass to try and hype himself up. We have a mutual opponent that we both have faced - and he knocked Amir Khan out. He wouldn’t be undefeated if he fought everybody I fought," Crawford stated.

"Amir Khan is in the way of what I’m trying to accomplish. I can’t let him put a roadblock in the middle of me accomplishing what I really want to accomplish in the welterweight division, and that’s becoming undisputed."

Khan was caught cold and knocked out in 54 seconds by Breidis Prescott in 2008. Crawford won a decision over Prescott in 2012. But some observers will point out that Khan faced a 19-0 version of Prescott, while Crawford fought him five years later and Prescott had already been beaten four times - by Miguel Vazquez, Paul McCloskey, Kevin Mitchell and KO defeat at the hands of Mike Alvarado.