Celtics will play NBA opener on Christmas

The NBA on Friday made its opening day slate of games official, meaning the Celtics-Knicks matchup on Christmas Day (noon ET) will be the first game played of the season. It will be televised on TNT.

The rest of the NBA's Dec. 25 slate is in the table on the right. The Dec. 25 opening date is contingent on the CBA being ratified next week.

The remainder of the Celtics' schedule will be announced on Tuesday at 7 p.m. ET on NBA TV. The plan is a 66-game regular season, ending about 10 days later than usual. The last possible day of the NBA finals would be June 26, two weeks later than the championship series ended last season. The Celtics, and every other NBA team, are guaranteed at least one set of back-to-back-to-back games.