As a freshman in 2005, Maualuga earned Freshman All-American first-team honors from the Football Writers Association of America and Scout.com; also he won USC's John McKay Award (most competitive spirit). Off the field his career started with occasional spirited and reckless partying that led to an October 2005 incident where he got into a fight at a Halloween party and was arrested for misdemeanor battery. He agreed in an arraignment diversion program that included counseling, Alcoholics Anonymous meetings and community service resulting in the charges being dismissed. Maualuga later noted that: "You learn that you're only given a certain number of chances. If you keep going back to the same things you were doing, it shows that you don't learn from anything."