Khalil Rountree will no longer be on the card to fight former light heavyweight champion Jamahal Hill at UFC 303, per ESPN's Andreas Hill.
Rountree was removed from the co-main event fight after taking a banned substance. According to Rountree, he took the illegal substance unintentionally and self-reported the mistake to UFC senior vice president of anti-doping compliance Jeff Novitzky and vice president of anti-doping compliance Donna Marshall.
"I'm gutted to deliver this news to you all, but I will not be fighting at UFC 303 due to consuming a banned substance," Rountree wrote in an Instagram post.