The Celtics also lost backup center Daniel Theis to season-ending surgery to fix a torn meniscus.
Marcus Smart is being evaluated for a potentially torn tendon in his right thumb, two people with knowledge of the situation tell Celtics Wire. Yahoo Sports' Shams Charania was the first to report the potential tear.
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We won 2-1 against Liverpool and at the end of the game there were some who said it was a failure. Normally he's an English player, you want him given time, he can make mistakes.
To be more accurate, the injury occurred when Smart went for a diving steal in what was ultimately a 99-97 Boston lost to Indiana Sunday.
"(It's) sore, but it will be alright", Smart said Sunday night after the game, sporting a black soft brace on his thumb after the injury.
The "can he play through it" question comes down to issues of can he make it worse, how does it impact his shot and ball handling (it is his shooting hand), and can he tolerate the pain? Theis was averaging 5.3 points and 4.4 rebounds in 63 games this season, playing behind Al Horford and Greg Monroe.