By Abby BittermanStaff writer abitterman@oklahoman.comWith less than five minutes to go in the first half, Austin Reaves drove toward the basket. He turned around in the corner of the key, dribbled back toward halfcourt and pulled up for a 3-pointer far behind every line on the Chesapeake Energy Arena floor. He sank the shot. It was his third made 3-pointer of the first half and a big part of the offense that helped Oklahoma beat No.Read more on NewsOK.com