Well-known radio host Howard Stern fired back at former NBA coach Jeff Van Gundy after the ESPN broadcaster criticized him for leaving his courtside seats before the end of a New York Knicks game.

Van Gundy was critical of Stern during ESPN’s broadcast of the Knicks’ April 2 battle with the Brooklyn Nets, TMZ reports. During the game, the former Knicks coach bashed Stern on air for leaving the game before its conclusion, allegedly stating that the shock jock didn’t deserve to have courtside seats.

During the Tuesday-morning edition of his radio show on SiriusXM, Stern reportedly fired back at Van Gundy, referring to the announcer as a “douchebag” and an “asswipe,” the website reports. According to Stern, Van Gundy doesn’t understand that people “have a life” and can’t always stay at the game until it ends.

“Jeff, I hate to explain it to you, but people who are really busy and have multiple careers going and get up at all hours of the day, they can’t stay at the basketball game,” Stern said, via TMZ. He also challenged Van Gundy to direct any additional criticism to his “f—king face.”

Stern’s response to Van Gundy’s comments extended to his radio show’s official Twitter page. “[Howard Stern] is not a Jeff Van Gundy fan. Here’s one of Jeff’s lesser moments,” a Tuesday-morning tweet said. The post included footage of an infamous incident in which Van Gundy attempted to break up a fight between his Knicks players and the Miami Heat by grabbing onto an opposing player’s leg.

Van Gundy has yet to respond to Stern’s comments.

In his seven seasons as head coach of the Knicks, Van Gundy led the franchise to six playoff appearances and a berth in the 1999 NBA Finals. Later, he spent several seasons as head coach of the Houston Rockets before beginning work as a broadcaster.