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

Oklahoma State's Le'Bryan Nash (2) tries to get around Portland State's Renado Parker (30) 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 Le'Bryan Nash (2) tries to get around Portland State's Renado Parker (30) during the college basketball game between Oklahoma State University and Portland State, Sunday,Nov. 25, 2012. Photo by Sarah Phipps, The Oklahoman