The year's biggest fight goes down Saturday night at Staples Center in Los Angeles when WBC heavyweight champ Deontay Wilder defends his title against lineal king Tyson Fury. Wilder is a -180 favorite, with Fury getting +150 as the underdog. The Over-Under is 9.5 rounds.

Before you bet it, you need to see what Peter Kahn is picking. A fight game veteran with over 20 years of experience as a manager, promoter and advisor, he has his finger on the pulse of what's going on inside and outside the ring. He can be heard weekly as co-host of "The Fight Guys" podcast on the SB Nation Radio Network.

This is the same expert who called Shawn Porter upsetting Danny Garcia in September, which paid +140 on the money line.

Now Kahn has scouted Wilder-Fury from every angle and locked in his best bet. We can tell you he's going Over 9.5 rounds, but his bigger play is on the winner. He's identified the critical x-factor that makes one fighter a must-back.

Who wins Wilder-Fury? And what critical x-factor makes one fighter a must-back?... Join SportsLine right now to see Peter Kahn's Wilder-Fury winner, all from the fight game insider and betting guru who just called Shawn Porter's upset of Danny Garcia!