"Scott Disick has made the decision to postpone his appearance at 1OAK in Las Vegas this Friday, July 10," the club said in a statement obtained by People. "The evening will resume as scheduled with a performance by DJ Shift."
Disick, 32, reportedly entered rehab in Florida on July 5 after returning from his headline-making vacation in Monte Carlo, where he was photographed getting touchy-feely with his 25-year-old ex-girlfriend Chloe Bartoli. However, in a strange twist of events, he left the center only hours later on that same day.
In a July 7 Twitter post, Disick asked his fans to "come party" with him at Las Vegas's 1OAK club on July 10. He also posted a promotional picture of himself on Instagram that has since been deleted.
Disick's friends grew especially worried about his partying habits after he failed to show up at his daughter Penelope's third birthday party on July 8 at Disneyland, TMZ reported.
Disick and Kardashian, 36, split over Fourth of July weekend after nearly a decade together. They have three children together: Mason, 5, Penelope, 3, and Reign, 6 months.