Injuries keep piling up for Pokes Oklahoma State receiver Tylan Wallace had just made his biggest play of the day, a 55-yard touchdown catch that gave the Cowboys a one-point lead late in the third quarter. But Wallace never returned to the game, sustaining what was believed to be a minor knee injury as he was tackled in the end zone. His absence affected what offensive coordinator Kasey Dunn was able to call in the fourth quarter of a 29-22 loss Saturday at TCU’s Amon G.