The school announced the move Thursday without disclosing details about Cobb's transgression. The Hartford Courant has reported it involved a verbal exchange between Cobb and head coach Kevin Ollie.
Cobb is a junior college transfer from Chipola College in Florida. He also spent a year at South Carolina but left the Gamecocks following an arrest for several vandalism incidents with a BB gun and possession of marijuana. He played 24 games as a freshman during the 2015-16 season with South Carolina.
Cobb is averaging 2.1 points and 3.2 rebounds in 11 games with the Huskies.
UConn (12-12, 5-6 American) visits No. 22 Wichita State on Saturday.