Al Horford's Sister: 'F--k You JR' After JR Smith Pushes Celtics Star in Midair

A questionable play on the court Tuesday led to an angry response from Al Horford's sister, Anna (warning: NSFW language):

In the fourth quarter of the Boston Celtics' eventual 107-94 win over the Cleveland Cavaliers in Game 2 of the Eastern Conference Finals, Horford went up for an alley-oop, but JR Smith pushed the Boston center in the back while he was in the air.

Tensions Flare in Boston

Horford could have landed awkwardly and gotten injured but was fortunately unharmed.

Meanwhile, Smith was called for a flagrant-1 foul and was part of a double technical with Marcus Smart, who confronted Smith following the play.

Cleveland was already trailing by eight points with less than four minutes left at the time of the play, so it seemed to be a frustration play by the veteran guard. In any case, Anna Horford wasn't too happy about the decision.