Jacob Groves scored a season-high 15 points as Oklahoma knocked off No. 3 Baylor 72–67 in the quarterfinals of the Big 12 tournament on Thursday in Kansas City, Mo. The Sooners bolstered their NCAA Tournament case with their fourth consecutive win, while the Bears’ five-game winning streak was snapped. Oklahoma, the tournament’s seventh seed, will take on third-seeded and 14th-ranked Texas Tech on Friday. Umoja Gibson added 14 points and Marvin Johnson had 12 for Oklahoma (18–14), which won its fourth game in a row. James Akinjo put up 16 points on 6-of-16 shooting as Baylor (26–6) saw its five-game winning streak end. No. 2 Arizona 84, Stanford 80 Christian Koloko recorded 24 points and nine rebounds to help the Wildcats hold off the Cardinal in the Pac-12 quarterfinals at Las Vegas. Bennedict Mathurin added 20 points and seven rebounds as top-seeded Arizona (29–3) advances to Friday’s semifinals. The Wildcats …