NORMAN, Okla. -- Baker Mayfield says his headache went away sometime late Saturday night after he took a shot to the back of the head in the first half of Oklahoma's 30-29 win over TCU. The Sooners quarterback has passed several concussion tests since and is convinced he will play this weekend against Oklahoma State. However, another sort of pain is ongoing -- putting up with his girlfriend's trash talk. Baillie Burmaster is a senior soccer player at Oklahoma State and, to hear Mayfield describe it, a Pokes fan who will be out for Sooners blood Saturday night at Bedlam. "She'll be sitting on the 50-yard line and wearing all orange," Mayfield said laughing. "She might be supporting me inside, but she's a die-hard Poke fan for life. I promise you that." Burmaster plans to pursue a career in sports broadcasting and was trying out some of her best one-liners on Mayfield last week, even rubbing it in that Oklahoma State was unbeaten and Oklahoma was not. "She can't...