Article Photos: Oklahoma State basketball: Cowboy defense sparks win streak

Oklahoma State's Markel Brown (22) dunks in front of Portland State's Lateef McMullan (1) during the college basketball game between Oklahoma State University and Portland State, Sunday,Nov. 25, 2012. Photo by Sarah Phipps, The Oklahoman

Oklahoma State's Markel Brown (22) dunks in front of Portland State's Lateef McMullan (1) during the college basketball game between Oklahoma State University and Portland State, Sunday,Nov. 25, 2012. Photo by Sarah Phipps, The Oklahoman