Report: Lesnar eyes potential UFC comeback by re-entering USADA testing

Brock Lesnar is keeping his options open.

The former UFC heavyweight champion has re-entered the USADA testing pool in order to potentially return to MMA competition, according to Dave Meltzer of the Wrestling Observer. Lesnar is currently under contract with both the UFC and the WWE, and also has to deal with the remainder of a one-year USADA suspension stemming from a July 2016 drug-test failure.

Lesnar retired from MMA for a second time last February, which froze his suspension, and he will reportedly be ineligible to compete for another five months. That means the earliest the 40-year-old could fight again is mid-December, should he decide to do so.

In his most recent outing last July, Lesnar ended a four-and-a-half-year retirement to win a unanimous decision over Mark Hunt in the co-main event of UFC 200. However, Lesnar would later be flagged for a pair of USADA violations that resulted in the win being overturned to a no-contest, a $250,000 fine, and his suspension.

Lesnar returned to the WWE during his time away from the Octagon. He appeared at Wrestlemania 33 in April and is currently the sports entertainment giant's Universal Champion.

In eight UFC appearances, Lesnar holds a 4-3 record with one no-contest. He won the heavyweight title in 2008 and successfully defended it twice.