Phil Heath will look to defend his title in the 2012 Mr. Olympia competition, but he will have some stiff competition in his quest for a repeat.
Heath beat out the 2010 Mr. Olympia, Jay Cutler. But thanks to an injury, Cutler will not be competing in this year's event after winning four of the last five before Heath's 2011 victory.
Cutler figured to be Heath's toughest competition this year, but the former champ's injury has opened the field to some other hungry competitors.
Let's take a look at some of the top contenders for this year's prize.
Warren is no stranger to competing for the top prize in a bodybuilding competition.
During his career, Warren has taken part in multiple Mr. Olympia competitions, with his best finish coming in 2009 when he placed second. In 2010, Warren finished in third which proved to be disappointing after his 2009 result.
Warren's most recent win in a major competition was as recently as last year when the 37-year-old placed first at the Arnold Classic.
Greene is another viable competitor who figures to give Heath a run for his money in 2012.
In 2011, Greene placed third in the Olympia competition which was a big step up from his 2010 seventh-place finish. Another year could be all Greene needs to finally capture his first Mr. Olympia title.
Greene's last win came back in 2011 during the New York Pro Bodybuilding, Figure and Bikini Championships.
Wolf is the third biggest threat to Heath's title in this year's competition.
The German placed fifth in last year's Mr. Olympia contest and will look to improve on that finish in 2012. Wolf's last major victory came in 2011 at the Australian Pro Grand Prix XI, but he didn't beat any of the top competitors at the 2012 Mr. Olympia competition.
Success in 2012 came in the form of a second-place finish at the 2012 Arnold Classic.