Dave Portnoy is back — and he made sure his employees heard about it.

One day after finalizing a deal to re-acquire Barstool Sports from Penn Entertainment, Portnoy arrived at Barstool’s headquarters in New York to a mostly empty office and quickly launched into a profanity-laden rant.

In a blog post titled, “How F–king Brain Dead Are All My Employees,” Portnoy ripped into his staff for not showing up to the office the morning after he bought the company back.

“I have an honest question. How f–king dumb are all my idiot employees? I’ve literally owned Barstool again for less than 24 hours, they know I’m in town and literally none of them have showed up at the office today before 10am,” he wrote.

“None of them thought to show up maybe early on day 1 of the new regime. I mean seriously how f–king dumb are these people? No wonder Penn gave it back to me for pennies on the dollar. I got the dumbest group of morons who ever lived.”

“These motherf–kers don’t show up, I’m only in the office for a f–king week!” he said in a video.

Warning: graphic language

Portnoy, who founded the company back in 2003, received 100% of the company back after Penn bought a majority stake in the company earlier this year for $551 million.

Penn also announced a partnership with ESPN to rebrand its existing sportsbooks.

“We underestimated just how tough it is for myself and Barstool to operate in a regulatory world where gambling regulators, the New York Times, Business Insider hit pieces f–king with the stock price. Every time we did something it was one step forward two steps back,” Portnoy said in a video Tuesday.

Portnoy promised he would never sell Barstool again, telling fans he’ll hold onto it until he “dies.”

The controversial figure celebrated the re-acquisition of his company by purchasing a horse for $650,000.