Season 8, Episode 13: "The Comeback"

Yeah, I wasn't gonna get it, but this guy, Milos, who runs the pro shop...

...he really recommended it.

In fact, it's the only racket he plays with.

You're not gonna need this anymore.

Hey, this is the Z page of my address book.

Oh, yeah, I put all your Z's on the weights-and-measures page.