Four of Mayweather Promotions’ top prospects and their opponents all weighed in on Thursday ahead of Friday night’s ShoBox: The New Generation quadrupleheader live on SHOWTIME (10:30 p.m. ET/PT) from Sam’s Town Live in Las Vegas. (photos by Ian Spanier)

Undefeated super featherweight prospect Xavier Martinez (14-0, 10 KOs) returns for his second consecutive test on the developmental series, this time against Filipino Jessie Cris Rosales (22-3-1, 10 KOs) in the 10-round main event, while 2016 Olympian Richardson Hitchins (9-0, 5 KOs) takes on Kevin Johnson (7-4, 4 KOs) in a 10-round welterweight co-featured attraction.

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Super middleweight prospect Kevin Newman II (10-1-1, 6 KOs) looks to avenge the only loss of his career against Marcos Hernandez (14-2-1, 3 KOs) in an eight-round rematch, and in the telecast opener, rising prospect and knockout artist Rolando Romero (9-0, 8 KOs) faces Juan Carlos Cordones (14-1, 9 KOs) in a six-round super lightweight bout.

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Tickets for the Mayweather Promotions’ Sin City Showdown start at $25 and can be purchased at:

Barry Tompkins will call the action from ringside with boxing historian Steve Farhood and former world champion Raul Marquez serving as expert analysts. The executive producer is Gordon Hall with Richard Gaughan producing and Rick Phillips directing.

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Super Featherweight 10-Round Bout

Xavier Martinez – 130 ¾ lbs.

Jessie Cris Rosales – 132 ½ lbs.

Referee: Vic Drakulich (Las Vegas); Judges: Tim Cheatham (Las Vegas), Lisa Giampa (Las Vegas), Max De Luca (Calif.)

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Welterweight 10-Round Bout

Richardson Hitchins – 144 lbs.

Kevin Johnson – 143 ¼ lbs.

Referee: Jay Nady (Las Vegas); Judges: Adalaide Byrd (Las Vegas), Patricia Morse Jarman (Las Vegas), Dave Moretti (Las Vegas)

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Super Middleweight 8-Round Bout

Kevin Newman II – 165 lbs.

Marcos Hernandez – 165 lbs.

Referee: Tony Weeks (Las Vegas); Judges: Kermit Bayless (Las Vegas), Glenn Trowbridge (Las Vegas), Max De Luca (Calif.)

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Super Lightweight 6-Round Bout

Rolando Romero – 138 lbs.

Juan Carlos Cordones – 141 ½ lbs.

Referee: Robert Byrd (Las Vegas); Judges: Patricia Morse Jarman (Las Vegas), Dave Moretti (Las Vegas), Ricardo Ocasio (Las Vegas)

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