Irving left Sunday's game against the Indiana Pacers after just 16 minutes and didn't return.
Myles Turner scored 19 points, including the game-winning basket with 21 seconds to play, and added 10 rebounds as the Indiana Pacers survived a insane final 2 seconds to hold on and beat the depleted Boston Celtics 99-97.
"I think [rest] will probably be the best thing, just instead of kind of hoping it gets better over the two or three days that it usually does", Irving said, via ESPN.
Celtics were already without Al Horford due to illness and Jaylen Brown, who suffered a concussion after crashing hard on the floor following a dunk in the third quarter against the Minnesota Timberwolves on Thursday and Irving's absence in the second-half saw them overthrow a 12-point lead against the resurgent Pacers.
The Celtics are off on Monday and Tuesday before hosting the Washington Wizards on Wednesday night. The magic number for the Celtics to clinch no worse than the No. 2 seed is just nine - with 15 games remaining.
While Boston did battle and have a chance to win the game, Kyrie Irving's playmaking ability was missed down the stretch. There's little reason to have Irving playing through pain when the risk outweighs the reward.
Irving said he was "not concerned" this is a long-term injury and that he hopes surgery will not eventually be needed.
Head coach Brad Stevens said after the game that he doesn't think it is anything more than a knee-to-knee or knee-to-thigh type injury.
"They've had a good year and I'm really impressed in watching the Pacers", Stevens said.
Head coach Brad Stevens also thinks the team should remain cautious over the final month before the playoffs with it now sitting in the No. 2 spot in the Eastern Conference.
A Smart 3-pointer had it a four-point gap with 2:22 left, but Oladipo answered right back with a 3-pointer. "The addition of (Trevor) Booker gives them a guy that can play a lot like Thaddeus Young when Thaddeus isn't in the game".
But balancing that need with keeping the Celtics' high-powered bench intact, is why Brown's replacement may not necessarily be one of the first guards off the bench.
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