Brock Lesnar may never fight again, but for the time being he remains a member of the UFC roster.

The former UFC heavyweight champion and current WWE star is still under contract with the UFC, even after his victory over Mark Hunt at UFC 200 last weekend, UFC officials confirmed with MMA Fighting.

That means Lesnar will continue to be drug tested by USADA as part of the UFC's anti-doping policy, USADA spokesperson Ryan Madden said. He'll continue to be tested until he informs USADA that he is retired from UFC competition.

"To my knowledge, Brock Lesnar has not notified USADA of his retirement from the UFC," Madden said. "Therefore, he remains subject to USADA testing and the UFC anti-doping policy."

The UFC has a rule that states a fighter must inform the promotion four months in advance if he or she is coming out of retirement so that fighter can be placed back in the USADA testing pool. The UFC waived the rule for Lesnar, which drew some controversy. Lesnar was tested six times in the four weeks before UFC 200, but was not subject to four months of testing. The UFC gave Lesnar an exemption, because he didn't retire while USADA was running the UFC's anti-doping problem and a long time had passed since Lesnar stepped away. The promotion treated him as if he were a new athlete just signed.

Lesnar, 38, was dominant in beating Hunt despite a layoff of more than four years. Before Lesnar stepped away from the UFC in 2011, he was plagued by multiple bouts of diverticulitis, a debilitating digestive system illness. Lesnar had 12 inches of his colon removed just months before losing to Alistair Overeem in his most recent fight before Hunt.

At the UFC 200 post-fight press conference, Lesnar kept the door open for a UFC return. Right now, though, he'll go back to WWE, where he is one of the promotion's biggest names. Lesnar will be involved in the pro-wrestling organization's SummerSlam pay-per-view event next month.

Lesnar (6-3) is a freak athlete, a man who won an NCAA wrestling title and then became the UFC heavyweight champion in just his fourth career fight with a win over legend Randy Couture. Before coming to the UFC the first time, he had prolonged success as a top draw for WWE. Headlining events like UFC 100, Lesnar is also one of the top draws in UFC history.