Mayweather vs McGregor: Floyd Mayweather claims Conor McGregor is struggling to make weight

Floyd Mayweather has claimed Conor McGregor is struggling to make weight ahead of their highly-anticipated showdown in Las Vegas this weekend, live on Sky Sports Box Office.

The undefeated 40-year-old said McGregor is "extremely heavy" and could risk facing a fine should he fail to make the 154lbs light-middleweight limit at Friday's weigh-in.

The Irishman, who has previously fought at 145lbs, is accustomed to losing
a large percentage of weight on the week of a fight, though Mayweather suggests the UFC star may be facing a tough cut this time around.

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"Conor McGregor is extremely heavy right now, I think he's 164lbs, he still has 10lbs to go," Mayweather told FightHype.com.
"He's got to get that weight down, a true champion is disciplined and very responsible but we'll see.

Floyd Mayweather is looking for a knockout when he takes on Conor McGregor in Las Vegas this Saturday.

"If he doesn't make the weight we'll still fight but it's going to be a heavy fine."
However, McGregor vowed his weight is "phenomenal" as he and Mayweather arrived in Las Vegas on Tuesday for their super fight at the T-Mobile Arena this Saturday night.

McGregor will face Mayweather at 154lbs, but has previously made 145lbs in the UFC

The two-weight UFC champion has been training at the UFC Performance Institute in the world's fight capital for August 26, and is adamant it's been the best camp of his career.
"He knows nothing," McGregor told reporters at the grand arrivals.

"Let him keep praying. Praying for weight, praying for fatigue, praying for me to take a back-step - all he's doing is praying to the new god of boxing.
"My weight is absolutely phenomenal. Tell me one time I have ever missed weight or not performed? Let him think what he wants."
Watch Mayweather vs McGregor, from the T-Mobile Arena, Las Vegas, from midnight August 26