Robert Drysdale has withdrawn from his UFC 163 fight against Ednaldo Oliveira, GRACIEMAG.com confirmed on Wednesday morning.

The Jiu-Jitsu expert, according to a report from the Las Vegas Review-Journal, received a staph infection and cannot compete on the Aug. 3 UFC Pay-Per-View.

UFC 163 was scheduled to be Drysdale’s debut with the organization, after building a 6-0 professional record in regional MMA promotions.

UFC officials are yet to confirm Drysdale’s injury. At this time, it is unknown if Oliveira will remain on the card.

GRACIEMAG.com will have updates on Drysdale’s return when more information becomes available.