Missouri quarterback Maty Mauk was dismissed from the program on Thursday, three days after video surfaced of him on social media seemingly snorting a white powder substance.
Though teammates subsequently spoke up on Twitter saying the video was not taken recently, Missouri coach Barry Odom said Mauk had violated team rules since a meeting in December offering him a fresh start.
Odom said in a statement that although the video is concerning, "we believe it is from a long time ago. However, Maty's failure to live up to expectations in recent weeks was the reason for the decision.