Brock Lesnar will fight in the UFC 200 co-main event on July 9, and the heavyweights are already coming out of the woodwork in hopes of being his opponent in a little more than a month at T-Mobile Arena in Las Vegas. The UFC on Saturday officially announced  Lesnar (5-3 MMA, 4-3 UFC) will return to the octagon for the first time since December 2011 in a one-off fight against an opponent that will be announced Monday. The former UFC heavyweight champion is currently contracted to WWE, but is being allowed to return to the UFC for one more fight in what’s a massive addition to the landmark event. Lesnar’s return came as surprising news after he announced his retirement from MMA in March 2015, but that didn’t stop plenty of fighters – including a former opponent – from calling for the fight. Check below for the top Twitter reactions to news Lesnar will return at UFC 200.