N.C.A.A. Tournament - Purdue Hangs On Against St. Mary's - NYTimes.com OMAHA - Robbie Hummel wasn't dazzling in his first N.C.A.A. tournament action in three years, and Purdue squandered a 13-point second-half lead. But Terone Johnson and Lewis Jackson made sure Hummel and the Boilermakers earned a chance to play one more game. Johnson scored 21 points on 9-for-13 shooting, and Jackson sank two key free throws with 22.8 seconds to play on Friday as No. 10 Purdue held on to beat No. 7 St. Mary's, 72-69, in the Midwest Region second round at CenturyLink Center. Hummel, who sat out Purdue's last two N.C.A.A. appearances after twice tearing the anterior cruciate ligament in his right knee, added two free throws with 8.7 seconds left for Purdue's final points. He managed only 10 points, 6 below his average, but added a team-high 7 rebounds for the Boilermakers (22-12). Johnson hit six of his first eight shots while scoring 15 of Purdue's first-half points for a 31-26 lead. An 11-1 burst early in the second half, with Jackson contributing two layups and Hummel a 3-pointer, extended the lead to 45-32, and Purdue seemed to be in good shape. But St. Mary's (27-6) closed to 66-64 on a jumper by Rob Jones with 1 minute 52 seconds to play. Jackson restored the four-point lead with a driving layup and drew the foul, but missed the free throw. Two Matthew Dellavedova free throws made it a two-point game with 1:29 to play. Hummel missed a jumper before Jorden Page drilled left-wing 3-pointer to put the Gaels ahead, 69-68, with 40.3 seconds left. St. Mary's poor 3-point shooting (4 for 25) especially hurt at the end. After Jackson's free throws, Page's 3-point attempt hit nothing and landed out of bounds. And a tying attempt just before the buzzer by Jones, who led the Gaels with 23 points and 14 rebounds but was 2-for-10 on 3-pointers, bounced off the rim.