By Matthew Geagan, CBS Boston

BOSTON (CBS) — As Al Horford missed a potential game-winning layup on Monday night in Houston, his Celtics teammate Marcus Smart ended up on the ground.

Smart was sent flying as he jockeyed for position under the basket in Boston’s loss, though it wasn’t an opposing player that turned the C’s guard into a projectile. It was Smart himself, and the NBA has taken notice (watch the play here).

Because of his acting in Houston, Smart has been issued a warning by the league for violating their anti-flopping rule. There is no fine this time, but next time, the guard won’t be as lucky.

The third-year guard has the reputation for being a notorious flopper, and Monday’s performance won’t help him shed that moniker. That play was reminiscent of Smart’s ridiculous flop in Game 3 of last season’s playoff series against the Atlanta Hawks:

Monday night’s wasn’t nearly as exaggerated as the one from the playoffs, which earned him a $5,000 fine from the league. And it turns out, Smart was actually hurt during the play:

Marcus will be the first player to get a flop warning and 17 stitches — on the same play. He's tough enough; doesn't need to sell so hard. https://t.co/EEi5TVI40Z — Steve Bulpett (@SteveBHoop) December 7, 2016

But since he’s already received a warning (and Oscar season is just around the corner) expect Smart to get his money’s worth next time. Because we all know, with certainty, there will be a next time.