Joe Mazzulla said that Mike Vrabel brings a "championship perspective" as he welcomed the Patriots coach to Celtics practice.

With two days between games, the Celtics took advantage of a rare opportunity to practice Saturday morning. And that gave Patriots first-year coach Mike Vrabel his first chance to see the team up close since assuming his new post.

Boston Celtics coach Joe Mazzulla invited a special guest to the Auerbach Center for his team's practice on Saturday: New England Patriots coach Mike Vrabel. Vrabel was hired as the Patriots next coach in January,