Photo by Ethan Miller/Getty Images-Golden Boy Promotions

All four welterweight participants of the co-featured fights of Showtime’s “Royal Battle” card made weight at Friday’s official weigh-in. Amir Khan and Devon Alexander, who fight in the main event, weighed 147 pounds. Keith Thurman, who faces Leonard Bundu in the co-feature, weighed 146 pounds. Bundu weighed 146.5.

The weigh-in took place at the MGM Grand’s Garden Arena, where the card will take place on Saturday.

Thurman (23-0, 21 knockouts), a dynamic boxer-puncher from Clearwater, Florida, told Showtime’s Brian Custer that he intends to extend his KO streak against Bundu (31-0-2, 11 KOs), a 40-year-old Italian veteran who holds the European title.

“You’ve got two undefeated fighters at the world-class level going at it,” said Thurman. “It should e a terrific fight but it ain’t going 12 rounds.”

When Thurman was asked if he is aiming for RING champ Floyd Mayweather Jr. next year he replied: “My motto for 2015 is ‘Burn Money.'”

Khan (29-3, 19 KOs), who thought he had a fight with Mayweather scheduled for this year, wouldn’t speculate if he’s once again a candidate to face the pound-for-pound king in 2015. He knows he’s got a difficult assignment in fellow former 140-pound titleholder Alexander (26-2, 14 KOs).

“It going to be an electric fight, one not to be missed,” said the 28-year-old native of Bolton, England. “I’m not looking past this fight. My whole focus is on this fight tomorrow.”

Alexander said it better be.

“In his heart, in his mind, he’s already beat,” said the 27-year-old St. Louis native. “He knows I’m a threat. That’s why he pulled out of our fight last year. He knows I can beat him.”

Three-division titleholder Abner Mares (27-1-1, 14 KOs) weighed in at 127 pounds for a special featherweight attraction against Jose Ramirez on the show. Ramirez (24-3-2, 15 KOs) weighed in at 131, three pounds over the contracted limit of 128 pounds for the non-title bout.

Jermall Charlo (19-0, 15 KOs) and Lenny Bottai (22-2, 9 KOs), who open the Showtime broadcast with their IBF junior middleweight title elimination bout, both weighed 154 pounds.