By Jake Donovan

The show will go on for Sergey Lipinets.

Mere hours after learning that originally scheduled opponent John Molina Jr. withdrew from their scheduled fight (as first reported by BoxingScene.com), the former 140-pound titlist will now face Philippines’ Jayar Inson, according to Lipinets’ manager Alex Vaysfeld.

Their bout will appear on the undercard of the welterweight title consolidation clash between unbeaten Keith Thurman (29-0, 22KOs) and former eight-division titlist Manny Pacquiao (61-7-2, 39KOs)—whose MP Promotions guides the career of Inson—which tops Fox Sports Pay-Per-View show Saturday evening at MGM Grand in Las Vegas, Nev.

It remains uncertain as this goes to publish whether Lipinets will remain on the PPV telecast, although his team remains grateful that weeks of training did not go to waste.

“We’re here to fight,” Vaysfeld told BoxingScene.com. “Whether there’s a (TV) camera rolling or in an empty arena, Sergey just wanted to fight. Not appearing on the card was never an option, we thank Jayar Inson and his team for stepping up.”

(UPDATE [3:04PM ET]: Lipinets-Inson will serve as part of the four-bout PPV telecast) 

Inson (18-2, 12KOs) was already in town and scheduled to appear on theundercard versus Mexico's Mahonri Montes when news broke of Molina Jr. (30-8, 24KOs) reportedly suffering a back injury. The 28-year old Filipino southpaw was on the short list of opponents under consideration for the bout.

Abel Ramos’ name also came up and seemed like the popular choice to take the fight. Ramos is also managed by Vaysfeld, and already scheduled to face Jimmy Williams on the undercard.

That bout remains intact as Inson steps way up in class for Saturday’s showdown versus Lipinets (15-1, 11KOs). He comes on the heels of a points loss in to Jonathan Steele this past January, also at MGM Grand and on a Pacquiao undercard.

Lipinets last fought in late March, rallying to drop and stop former two-division titlist Lamont Peterson in the 10th round of their Fight of the Year contender. The win was his second straight after conceding his 140-pound title to then-unbeaten Mikey Garcia last March. 

Jake Donovan is a senior writer for BoxingScene.com. Twitter: @JakeNDaBox