As of July, 2017, Brock Lesnar is eligible to return to mixed martial arts competition but Lesnar has told the Ultimate Fighting Championship that he is now retired from MMA.
Lesnar has notified the UFC of his retirement, as first reported by MMAFighting.com on Tuesday.
The current WWE superstar defeated Mark Hunt at UFC 200 in July of 2016. Following the win, Lesnar twice tested positive to the oestrogen blocker clomiphene; once prior to the fight and once on fight night.
Lesnar was suspended for one year by the U.S. Anti-Doping Agency.
The suspensions will be served concurrently, but he was also fined $250,000 by Nevada. The result of the bout with Hunt was changed to a no contest.
Lesnar won the UFC heavyweight championship by defeated Randy Couture at UFC 91. Lesnar would defend the title twice, against Frank Mir at UFC 100 and Shane Carwin at UFC 116 before dropping the title to Cain Velasquez at UFC 121.