Boston Celtics head coach Joe Mazzulla is so laser-focused on getting his team more wins that he can at at times find other areas of his life in need of a little more attention, like his car's roof. To wit,

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.

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.