By Keith Idec

The 140-pound title bout between Regis Prograis and Viktor Postol will take place in a unique location.

Promoter Lou DiBella informed BoxingScene.com on Tuesday that Prograis, who’s promoted by DiBella, and Postol will square off at the Deadwood Mountain Grand, a casino and resort in Deadwood, South Dakota. Showtime will televise the Prograis-Postol fight as the main event of a tripleheader.

Prograis (20-0, 17 KOs), a powerful southpaw from New Orleans, and Ukraine’s Postol (29-1, 12 KOs) will fight for the WBC interim super lightweight title. Jose Ramirez (21-0, 16 KOs), of Avenal, California, and Amir Imam (21-1, 18 KOs), of Albany, New York, will meet March 17 in The Theater at Madison Square Garden for the vacant WBC 140-pound championship Terence Crawford relinquished when he decided to move up to welterweight last year.

In his last fight, the 29-year-old Prograis knocked down previously unbeaten Joel Diaz Jr. (23-1, 19 KOs) four times in the second round on his way to a second-round technical knockout victory June 9 at Turning Stone Resort Casino in Verona, New York.

The 34-year-old Postol has fought just once since Crawford (32-0, 23 KOs) out-boxed him and won a unanimous decision in their 12-round, 140-pound title unification fight 18 months ago in Las Vegas. Postol won that 10-round bout by unanimous decision, but Uzbekistan’s Jamshidbek Najmiddinov (16-1, 10 KOs) dropped Postol in the fifth round September 16 in Kiev.

Prograis is ranked No. 2 in the WBC’s super lightweight ratings, one position beneath the top-rated Imam. Postol is rated No. 4 by the WBC, one spot after the third-ranked Ramirez.

The winners of the Prograis-Postol and Imam-Ramirez matches are obligated to fight for the WBC title.

Showtime’s telecast March 9 also will include an IBF junior welterweight elimination match that’ll pit Sweden’s Anthony Yigit (21-0-1, 7 KOs) against Russia’s Ivan Baranchyk (17-0, 10 KOs). Yigit is ranked No. 3 by the IBF at 140 pounds, one spot in front of Baranchyk.

The winner will become the mandatory challenger for the victor of the March 10 bout between champion Sergey Lipinets (13-0, 10 KOs) and challenger Mikey Garcia (37-0, 30 KOs).

The third component of Showtime’s tripleheader March 9 has yet to be determined.

Keith Idec is a senior writer/columnist for BoxingScene.com. He can be reached on Twitter @Idecboxing.