Earnest Ross hit four free throws down the stretch and Rodney Clarkson scored 20 points to lead No. 21 Missouri to a 70-68 victory over Auburn on Saturday.
Ross, who spent two seasons at Auburn before transferring in 2011, scored 16 points for Missouri (13-2, 1-1 Southeastern Conference).
Unable to get off a tying 3-pointer, Chris Denson missed a layup with 5 seconds left but drew the foul for Auburn (8-5, 0-2). He made one free throw then Torren Jones stepped on the baseline after rebounding the missed second attempt.
Wes Clark batted away Tajh Shamsid-Deen's long inbounds pass to end the game and Jabari Brown collected the ball just before time ran out.
Brown added 15 points for Missouri.
KT Harrell led Auburn with 27 points.