The Terrapins are looking to win their third consecutive game.
Cowan was taken in the first round of the G League Draft.
Maryland is looking to snap a three-game losing skid.
The Terps and Illini have met 17 times before.
The Terps are undefeated since her injury on Dec. 3.
Illinois enters the game on a four-game winning streak.
The Hawkeyes closed the first half on a 35-7 run to put the Terps away early.
Five players scored in double-digits for the Terps, who continued their undefeated start in Big Ten play.
The Terps are hosting the No. 5 Hawkeyes following two consecutive losses.
The Terps will have their hands full with the No. 5 Hawkeyes.