Trey Kaufman-Renn cleans up Braden Smith's miss with a tip-in as Purdue knocks off Texas to reach the Elite Eight. (0:22) SAN JOSE, Calif. -- Trey Kaufman-Renn has heard coach Matt Painter remind the Boilermakers so many times during his four years at Purdue that it's not always the first shot of a possession that matters most. "It's those tip-ins at the end of the games," Kaufman-Renn recalled of the message. "He said that my four years here, so it's kind of cool to experience that." Yes, Kaufman-Renn's quick hands at the rim extended a special NCAA tournament run for Purdue. Kaufman-Renn tipped in a miss by Braden Smith with 0.7 seconds left, and the No. 2-seed Boilermakers edged hobbling Texas star Tramon Mark and the 11th-seeded Longhorns 79-77 on Thursday night in the Sweet 16. "It's not like it's a shot to practice every single day," Kaufman-Renn said.…