USC guard Destiny Littleton controls the ball during a loss to UCLA on Dec. 15. Destiny Littleton scored 21 points, Rayah Marshall and Kadi Sissoko had double-doubles, and USC defeated No. Marshall had 19 points and 10 rebounds, Sissoko added 18 and 12, and Littleton made six of 13 three-pointers, four of them in a key third-quarter surge that put …