Karasev has a torn MCL, dislocated knee cap and "multiple loose bodies" in his right knee, the team said. He will have surgery at a Manhattan hospital Thursday.
Karasev, 21, has played in 33 games for the Nets this season and is averaging 4.6 points and 1.4 assists in 16.8 minutes per game. He was injured in the fourth quarter of Tuesday's game against the New Orleans Pelicans.
A former first-round pick by the Cleveland Cavaliers, Karasev played in his native Russia from 2010–‘13. He bounced between the Cavaliers and their D-League affiliate last season before being traded to the Nets in the deal that sent Jarrett Jack to Brooklyn and cleared cap space for Cleveland to sign LeBron James.
The Nets (25-37) are currently three games behind the Charlotte Hornets for the eighth and final playoff spot in the Eastern Conference.
- Dan Gartland