WBC Featherweight World Champion Gary Russell Jr. and unbeaten mandatory challenger Tugstsogt "King Tug" Nyambayar went face-to-face at the official weigh-in Friday before they headline action live on SHOWTIME on Saturday, February 8 in a Premier Boxing Champions event from PPL Center in Allentown, Pennsylvania. (photos by Amanda Westcott)

 The weigh-in also featured former champions Guillermo Rigondeaux and Liborio Solis, who battle in the co-main event for the vacant WBA bantamweight Title, plus Jaime Arboleda and Jayson Velez, who compete in a 12-round WBA Super Featherweight Title eliminator to open the SHOWTIME CHAMPIONSHIP BOXING telecast at 9 p.m. ET/6 p.m. PT.

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Tickets for the live event, which is promoted by TGB Promotions and Kings Promotions, are on sale now and can be purchased through

WBC Featherweight World Championship – 12 Rounds

Gary Russell Jr. – 125 lbs.

Tugstsogt Nyambayar – 125 ¾ lbs.

Referee: Gary Rosato (Penn.); Judges: David Bilocerkowec (Canada), Glenn Feldman (Conn.), John McKaie (N.Y.)

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WBA Vacant Bantamweight World Championship – 12 Rounds

Guillermo Rigondeaux – 117 ¼ lbs.

Liborio Solís – 117 ¾ lbs.

Referee: Benjy Esteves (N.Y.); Judges: Don Ackerman (N.Y.), Ron McNair (N.Y.), Kevin Morgan (N.Y.)

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WBA Super Featherweight Eliminator – 12 Rounds

Jaime Arboleda – 129 ¼ lbs.

Jayson Vélez – 130 lbs.

Referee: Eric Dali (N.J.); Judges: Bernard Bruni (Penn.), Glenn Feldman (Conn.), Eric Marlinski (N.Y.)