Grayson Allen has been terrific all season. Nearly All-American quality, even.

On Monday night, he did not have one of his finer moments. 

With about 14 minutes left in Duke's game against Louisville, Grayson Allen went up for a lay-up. He missed and -- as he so often does due to the reckless abandon he plays with -- fell to the ground. Then, he did something strange. Once Raymond Spalding grabbed the rebound, he turned and looked to run with the ball. Instead of moving out of the way, Allen appeared to stick his leg out and trip Spalding. 

Allen was assessed a flagrant-one foul on the play. In a weird piece of what some would call karma, he did not score again following the incident.

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Obviously, this isn't going to do wonders for Allen's reputation as one of the more disliked players by opposing fanbases in the country.

Grayson Allen tripped an opposing player on Monday night. (USATSI)