Watch Grayson Allen Get Ejected for Flagrant Foul vs. Celtics at Summer League

Memphis Grizzlies guard Grayson Allen was ejected from Thursday night's NBA Las Vegas Summer League contest against the Boston Celtics after committing a pair of flagrant fouls during a seven-second span.  

Late in the second quarter, Allen was given a technical foul for setting a hard offensive screen against Boston guard Max Strus. That would not be the last of his, um, physical play on this night, though.

At the 9:19 mark in the fourth quarter, Allen got called for a flagrant foul after delivering a shove to the upper body of Celtics forward Grant Williams. And when play resumed after the free throw, Allen took a hard swipe at a driving Williams, leading to an early exit:

Of course, given Allen's controversial tenure at Duke, the second-year guard's actions created an all-too-familiar feeling:

Allen finished with three points on 1-of-8 shooting, including 1-of-6 from three-point range. He recorded a minus-28 plus-minus in 19 minutes of action.