Celtics back home with chance to clinch NBA record 18th championship [Video]

The Boston Celtics’ catastrophic performance in Game 4 of the NBA Finals gave them a chance to clinch another championship on Monday night under the 17 banners already hanging in the TD Garden rafters.And, coach Joe Mazzulla reminded them, that they would still have two more chances after that.“We don’t like to lose,” Celtics guard Jaylen Brown said before practice on Sunday. “I think we are ready for Game 5. I think that’s the best answer that I’ve got. I think that we’re ready. We’re at home. And we’re looking forward to it.”The Celtics cruised through the regular season with the best record in the NBA and then did even better in the playoffs, never trailing in a series while winning 15 of their first 17 games. They opened a 3-0 lead on Dallas, but the Mavericks avoided elimination with a 122-84 victory on Friday night — the third-biggest blowout …