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The 24-year-old fractured his forearm while punching a chair during Thursday's game against the Dallas Mavericks and could miss two months because of the injury, per Royce Young of ESPN.com.
On Saturday, Kanter recognized the damage he caused.
"Of course, it's like a really sad thing because like, I mean because you're letting your teammates down when you make a mistake like that," Kanter said, per Young. "I mean your coaches down and stuff. But the only thing you can do is just, you know, you learn from it.