Rock Ridge upset Duluth Denfeld 70-57 in a Section 7AAA quarterfinal on Wednesday night in Duluth. Top-seeded Hermantown, Chisago Lakes and North Branch also advanced to the semifinals, which will be held Friday night. Howie / HowieHanson.com Howie Sports Wednesday Night Scoreboard Christian Darrisaw: 'This is where I wanted to be' Limited single-game Vikings tickets to go on sale Thursday UMD, Wiese agree to contract extension; Vikings Notebook