The Trojans look to stay undefeated at home Friday night after securing their first victory under coach Andy Enfield on Tuesday.
USC has now won its last three games and is tied for fifth place in the Pac-12.
Behind a double-double from senior forward Eric Wise, USC takes down the 49ers at home.
Terrell, a transfer who played at Wake Forest in 2010-11, will join senior Jio Fontan in the backcourt.
The Trojans’ improved depth in the backcourt softens the loss of reliable junior point guard.