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.

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.

The newest New England Patriots head coach showed up to support Boston's current dynasty. Mike Vrabel, a former member of the Bill Belichick/Tom Brady-era Patri

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.

The Boston Celtics have been one of the NBA’s most consistent teams. Their players have stayed highly motivated, and it shows on the court. The surprising decision about team captaincy may have played a role.

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.