The Celtics had two head coaches present at Saturday morning’s practice. One, of course, was Joe Mazzulla. The other: Mazzulla’s new Patriots counterpart, Mike Vrabel.

Boston Celtics coach Joe Mazzulla has shown up at New England Patriots practices in the past. So he extended an open invitation to newly-hired Patriots head coach Mike Vrabel to do the same at the Celtics’ practice on Saturday. Vrabel reportedly accepted and showed up at the practice.

Mike Vrabel didn’t just make his mark as a player—now he’s back with the Patriots on a multimillion-dollar deal. From star linebacker to well-paid coach, his fortune keeps growing. Check out his net worth.