The Parks and Recreation star was recently in Ohio with wife Megan Mullally when he suffered the onstage injury.

He says, "We do a dance at the end of our show that she (Mullally) choreographed to Carly Simon's Nobody Does It Better and in Cincinnati I tore my meniscus.

He continues, "There's, like, a wood chip in my knee joint and they're going to pull it out on Friday."