Boston would add that contact with Magic center Nikola Vucevic, who's listed at 7-foot-0, 260 pounds, midway through the third quarter of Sunday's contest is what led to Smart's injury.
The Celtics are locked in as the Eastern Conference's fourth seed and will face the Pacers in the first round.
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He said: "Of course not". "Great players are always welcome, but we have a great squad already, and we will win things again".
The timeframe likely removes Smart from the first two rounds of the National Basketball Association playoffs. He started in 60 games this season, averaging 8.9 points, 4 assists and 2.9 rebounds. Smart would sustain the injury against the Orlando Magic on Sunday and was forced out of game action because of it.
Jaylen Brown will likely slot back into the starting lineup at shooting guard in Smart's absence. The 21-year-old's partnership with Kyrie Irving, who will be playing his first playoff match for the Celtics after missing last season with injury, will be key if they are to make a deep run in the playoffs. He is shooting a career-best 42.2 percent from the field, including a career-high 36.4 percent from 3-point range, this season.
Boston eventually called a timeout, and Smart limped to the bench - only to convince the training staff that he was all right and could stay in the game. Eventually, he got to his feet and, with the help of trainers, hobbled to the locker room. The physical guard is noted as one of the NBA's top defenders.