MMAJunkie.com has the news:
LAS VEGAS – The winner of Saturday's UFC 109 co-main-event fight between Nate Marquardt (29-8-2 MMA, 8-2 UFC) and Chael Sonnen (24-10-1 MMA, 3-3 UFC) will earn a middleweight title shot.
At today's UFC 109 pre-event press conference, UFC president Dana White confirmed the recent speculation and guaranteed the winner a shot at the belt.
White, who emceed today's presser at Mandalay Bay Resort & Casino's Mizuya Lounge in Las Vegas, said he always considered the co-headlining fight a No. 1 contender's bout.
“We always had it in mind,” White said. “These are two of the top five [middleweights] in the world depending on what you look at.”