Former UFC middleweight contender Chael Sonnen has remained busy despite his retirement from the company after multiple failed drug tests and his unceremonious firing from UFC/FOX Sports broadcasts.

2015 was perhaps the greatest year in the history of grappling. For the first time ever, submission grappling finally transcended its niche community and caught the attention of combat fans worldwide.

UFC heavyweight Brendan Schaub takes on nine-time Brazilian jiu-jitsu world champion Roberto “Cyborg” Abreu at Metamoris 2, a professional jiu-jitsu invitational event, on June 9. He'll follow that ...