Sellers spent her summer playing with Team USA's 3x3 team and will need to become a primary ballhandler for the Terps.
Coach Brenda Frese has used the transfer portal to great effect over the last two seasons.
The Terps were led by Diamond Miller and Shyanne Sellers, who combined for 36 points.
How do the Terps' 14 players prefer to spend their time on the road?
The Terps' quartet of freshmen — Gia Cooke, Bri McDaniel, Mila Reynolds and Ava Sciolla — have barely played this season.
The Terps missed all 17 three-pointers but still pulled out a victory.
The Terps outscored the Fighting Illini 31-8 in the third quarter, with 17 of their points coming of Illinois turnovers.
The rout was the Terps' largest margin of victory over a top-10 opponent in program history.
Caitlin Clark and Monika Czinano combined for 70 points as the Terps dropped their third Big Ten game of the season.
The Terps embarked on a massive first quarter run to blow the game open early.