James is dealing with an unspecified right leg injury suffered in the fourth quarter of Game 6 (he still scored 14 of his 46 points in the period).
Meanwhile, Golden State Warriors and Houston Rockets are also deadlocked after six matches - but which outfit are favourites to be crowned NBA Champions. Only the legendary Celtics (21) and Los Angeles Lakers (31) beat James in that category by a really wide margin.
Cleveland was playing without All-Star forward Kevin Love, who is in the concussion protocol.
Irving underwent an earlier knee surgery in March to have a tension wire removed from the kneecap.
It's been clear all postseason that the Celtics won't be intimidated by anyone, and that holds true as they look to dethrone LeBron James as the King of the Eastern Conference (he's looking to go to the NBA Finals for the eighth straight season). He's the first player with at least 35 points, 15 boards, and five assists against the Celtics in the playoffs since... himself, in 2012.
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"I don't think any of us can really understand", said Ainge. The Cavaliers were probably far better past year and could only get a game from the Warriors. That may come as soon as next season if James leaves the Eastern Conference.
"I mean, at this time previous year, I couldn't have said that we were going to have 11 new players off the team that just won 53 games and won a playoff round", said Ainge about a club that actually won two rounds last season.
Ainge scoffed when told how some fans have wondered whether the Celtics should move one of their All-Stars after all the success they enjoyed without them. With the rookie Tatum and second-year Jaylen Brown, Boston established itself as the team of the future in the East.
But the present still belongs to James.
Cavaliers: Shot just 2 of 17 from 3-point range in the first half, making three of their first 22 shots from long range before James and Green connected on back-to-back attempts midway through the third quarter. His stat line for this series: 33.6 points, 9 rebounds and 8.4 assists. Hartstein is on a phenomenal 8-2 run on spread picks involving the Cavaliers and 21-12 with all National Basketball Association teams this postseason.
Boston made the mistake of using the three pointer as their main offensive weapon down the stretch but they finished a dismal seven-of-39 overall from beyond the arc.