Brock Lesnar, failed a second drug test on the day of his fight at UFC 200, it was announced on Tuesday.
The UFC previously announced last Friday that Lesnar had failed a USADA-administered out-of-competition test from a June 28 sample.
Lesnar defeated Mark Hunt at UFC 200 at the event and is also scheduled to make a return to WWE for a fight against Randy Orton at SummerSlam on August 21.
The WWE revealed over the weekend that Lesnar would be entered into the pool of superstars to be taken in their draft on Tuesfay night. Fellow wrestling star Roman Reigns was suspended for violating the company’s wellness policy on June 30.