Colorado's D'Shawn Schwartz dunked a McKinley Wright IV miss with 3.3 seconds remaining Friday to lift the Buffaloes to a dramatic 72-70 win over USC in the Pac-12 tournament semifinals at T-Mobile Arena. Tad Boyle's Buffs will meet Oregon State, a surprise 75-64 winner over top-seeded Oregon in the other semifinal, in Saturday's 8:30 p.m. (MT) championship game (ESPN). Colorado swept Oregon State in the regular season, taking an easy 78-49 win in Boulder before scratching out a 61-57 victory in Corvallis.