Tonight on Showtime and Showtime Extreme, Golden Boy Promotions and DiBella Entertainment present a card from the Hard Rock in Las Vegas, headlined by a compelling 140-pound fight between Argentina's Lucas Matthysse and Nigeria's Olusegun Ajose.

There will be a pair of preliminary bouts on Showtime Extreme at 7 pm, followed by the main double-header on Showtime at 9.

Fight time: 7:00 p.m. EDT (Showtime Extreme - prelim bouts) / 9:00 p.m. EDT (Showtime)

Location: Hard Rock - Las Vegas, Nevada

TV channel: Showtime (US)

We'll have live coverage of the fights, and with HBO starting their Ward vs Dawson broadcast at 9:45 but leading with the Klitschko vs Charr replay.

Undercard rundown after the jump.

Undercard Lineup

Middleweights, 10 Rounds (Showtime)
J'Leon Love (12-0, 7 KO) vs Ramon Valenzuela (7-1, 1 KO)

Junior Middleweights, 10 Rounds (Showtime Extreme)
Ishe Smith (23-5, 11 KO) vs Irving Garcia (17-7-3, 8 KO)

Junior Middleweights, 6 Rounds (Showtime Extreme)
Daquan Arnett (6-0, 4 KO) vs Jesus Tavera (4-2, 1 KO)

Lightweights, 6 Rounds (Off-TV)
Oscar Cortes (21-0, 11 KO) vs Miguel Buendia (8-1-1, 5 KO)