Photos: Efe Ajagba, Michael Wallisch - Vow Fireworks in Vegas

Former lightweight world champion Robert Easter Jr. and former two-division champion Rances Barthelemy will meet for the vacant WBA Lightweight Title in the main event of a SHOWTIME BOXING: SPECIAL EDITION Saturday, April 27 from The Chelsea inside of The Cosmopolitan of Las Vegas and presented by Premier Boxing Champions. (photos by Esther Lin, Ryan Hafey).

Televised coverage begins at 10 p.m. ET/7 p.m. PT and will also feature former super lightweight champion Viktor Postol taking on France's Mohamed Mimoune in a WBC Super Lightweight Title Eliminator, while rising heavyweight sensation Efe Ajagba looks to remain unbeaten against once-beaten German Michael Wallisch in a 10-round heavyweight attraction.

WBA Lightweight World Title – 12 Rounds

Robert Easter – 133 ¾ lbs

Rances Barthelemy – 135 lbs

Referee: Kenny Bayless; Judges: Tim Cheatham (Nev.), Eric Cheek (Nev.), Glenn Trowbridge (Nev.)

WBC Super Lightweight Title Eliminator – 10 Rounds

Viktor Postol – 139 ½ lbs

Mohamed Mimoune – 138 ½ lbs

Referee: Robert Byrd; Judges: Robert Hoyle (Nev.); Patricia Morse Jarman (Nev.); Benoit Roussel (Canada)

Heavyweight Attraction – 10 Rounds

Efe Ajagba – 241 lbs

Michael Wallisch –  242 ½ lbs

Referee: Tony Weeks; Judges: Adalaide Byrd (Nev.); Lisa Giampa (Nev.); Ricardo Ocasio (Nev.)