The frustration was acceptable, but the reaction was not.
Early in the fourth quarter of a 34-31 win at Arizona State on Sept. 21, Colorado receiver KD Nixon was tackled after a 17-yard catch and held down by a Sun Devils defender.
When Nixon got up, he shoved the ASU defender and drew a 15-yard penalty. It was the first play of a crucial drive in a tie game, but the penalty contributed to the Buffs being pushed back and punting.
