The Ultimate Fighting Championship returns Sunday (9 p.m. ET, Versus) to the home of World Extreme Cagefighting. A look at the most intriguing bouts for UFC on Versus 2:  Light-heavyweight: Jon "Bones" Jones (10-1) vs. Vladimir "The Janitor" Matyushenko (24-4)  STORYLINE: The 205-pound division's leading youngster takes on a weathered veteran of the weight class' pioneering years.  CASE FOR JONES: What can't he do? The 23-year-old has the broadest skillset in the light-heavyweight class, with punches and kicks from unpredictable angles, sharp elbows, surprising throws from the Greco-Roman clinch, trip takedowns and formidable counterwrestling. Combine that with quickness, speed and an 84-inch reach, and you have UFC's most exciting prospect at any weight.  CASE FOR MATYUSHENKO: Has seen it all over 13 years in mixed martial arts. Very good wrestler for MMA, with the ability to keep opponents trapped underneath him for long stretches.  PICK: Jones. The Janitor will look for his takedowns, but his chances of getting past Jones' stand-up offense are slim. Even if Matyushenko can get close, Jones has already shown in fights with Jake O'Brien and Matt Hammill that he can turn the tables in clinches.  Middleweight: Mark "The Filipino Wrecking Machine" Munoz (8-1) vs. Yushin "Thunder" Okami (24-5)  STORYLINE: Even though it's not the main event, it's the most significant fight on the card -- Okami can put himself in line for a title shot, and Munoz can elevate himself to the ranks of UFC's middleweight elite.  CASE FOR MUNOZ: Outstanding wrestler. Aggressive with ground-and-pound. Has the instincts and chin to survive dangerous situations. Has access to a deep pool of talent at his new gym. Improves with every fight.  CASE FOR OKAMI: The most effective middleweight at keeping top control on the mat. Strong for a 185-pounder. Reliable jab and underrated boxing overall, particularly at close range.  PICK: Munoz. Okami usually tries to overpower and outwrestle opponents, but he won't be able to do either against a former light heavyweight who was an NCAA Division I wrestling champion.  Lightweight: Tyson Griffin (14-3) vs. Takanori "The Fireball Kid" Gomi (31-6, 1 no contest)  STORYLINE: Two lightweights in need of a victory, especially Gomi, who has yet to win a fight on U.S. soil. Griffin steps in on somewhat short notice to fill in for Joe "Daddy" Stevenson, who had to pull out because of an injury.  CASE FOR GOMI: One of the stronger lightweights, with a big frame and power in his punches. Good takedowns and counterwrestling. Opportunistic with submissions. Excellent chin.  CASE FOR GRIFFIN: Adept in all aspects of mixed martial arts. Very good wrestler who has become a technically sound boxer. Knows enough about grappling to acquit himself well on the mat against most 155-pounders. Durable fighter who has never been knocked out or submitted in his professional career.  PICK: Griffin. Gomi is long past his glory days as Pride champion -- it's been years since he truly could be considered a top lightweight. While the Japanese star has a puncher's chance, Griffin is a better wrestler, better grappler and cleaner boxer who is too smart to be lured into a brawl with The Fireball Kid.  READERS: What are your picks for UFC on Versus 2?
UFC on Versus 2 preview: Count on Jones, Munoz, Griffin - MMA Fighting Stances: Mixed martial arts intelligence from the cage and ring - USATODAY.com