After months of speculation, Brock Lesnar's chips have all been laid down and placed. He is now all in with World Wrestling Entertainment (WWE) and professional wrestling.

Former Ultimate Fighting Championship (UFC) Heavyweight Champion Lesnar decided to call it quits in the Mixed Martial Arts (MMA) game. He has officially closed the door on that part of his career.

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In an interview with Sportscenter, the 37-year old athletic specimen just revealed that he had re-signed with the WWE. His announcement effectively ends all the speculation previously swirling around him.

"It was a very hard decision at this stage of my career. The fighter inside me wants to compete. The father and husband -- I'm an older caveman now," said Lesnar. "I make wiser caveman decisions. So, I'm here to say my legacy in the Octagon is over."

For years, people have speculated which direction Lesnar would lean to in his career.

As a fighter who shot to the top of the heavyweight division with only a handful of fights in the UFC and a few years of experience in MMA, Lesnar is a well-known figure in the world of combat sports.

Apart from his overwhelming presence and athletic abilities though, Lesnar is also credited as the fighter who drew the most amount of PPV buys in the UFC.

The event was UFC 100. It featured an epic rematch between Frank Mir and Lesnar. Mir had previously submitted Lesnar with a kneebar.

The rematch with Lesnar out for blood was a significant draw, with the help of a welterweight showdown between champion Georges St-Pierre and challenger Jake Shields.

The gates amounted to US$5,128,490 at Mandalay Bay. For PPV buys, UFC 100 did an eye-opening 1,600,000 buys.

The figure increased the previous record of UFC ---- one set at UFC 91 with 1,010,000 --- a staggering 58 percent.

Looking forward, Lesnar is slated to appear at the biggest stage of them all, Wresltemania 31, at Santa Clara, California this weekend.

Tagsbrock lesnar, wwe, UFC