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Transsexual fighter Fallon Fox finds herself at the center of a polarizing debate over gender equality in MMA.

Heavyweight contender Alistair Overeem returns to action Aug. 17 to face Travis Browne, UFC officials confirmed with ESPN.com on Wednesday.

Former UFC heavyweight champion Josh Barnett has re-signed with UFC, promotion president Dana White confirmed Wednesday with ESPN.com.

Lightweight Pat Healy tested positive for marijuana after his April 27 win over Jim Miller at UFC 159 in Newark, N.J., and has been suspended 90 days by the promotion, the fighter said Tuesday.

Former top UFC welterweight contender Thiago Alves will return to action for the first time in more than a year on Aug. 17 when he faces Matt Brown, the promotion officially announced on Tuesday.

Veteran featherweight Leonard Garcia, whose aggressive fighting style made him a fan favorite, announced on Wednesday that he's been released by UFC.

Former UFC interim heavyweight champion Shane Carwin announced his retirement Tuesday night.

Middleweight contender Costantinos Philippou suffered a cut above his left eye that has forced him out of a May 18 bout, the fighter confirmed to ESPN.com on Friday.

Belfort stops Rockhold with spinning kick

Lightweight champion Michael Chandler makes the second defense of his Bellator title June 19 when he meets Dave Jansen in Thackerville, Okla., promotion officials announced Wednesday.

The UFC has suspended featherweight Robbie Peralta for six months after he failed a postfight drug test in April, the promotion announced Tuesday night.

After weighing in Friday, welterweight Nick Catone suffered dehydration and was taken to a hospital, promotion officials announced Saturday.

Light heavyweight champion Jon Jones is an overwhelming favorite to retain his belt Saturday night at UFC 159 over Chael Sonnen at the Prudential Center. But Jones has a long way to go before being as popular as his challenger.

The suspension of heavyweight Matt Mitrione has been lifted and he will face Brendan Schaub on July 27 at UFC on Fox 8 in Seattle, promotion officials announced Wednesday night.

NEW YORK -- It's not a debatable issue: heavyweight contender Tyson Fury is extremely confident. He's also arrogant, saying whatever comes to mind at any given moment, not caring whom it offends. When it involves fighting, Fury has a lot to say. ...

Fast-rising lightweight Edson Barboza and hard-hitting John Makdessi will meet July 6 at UFC 162 in Las Vegas, the promotion officially announced on Friday.