Porzingis helped off court after apparent leg injury

Kristaps Porzingis left the New York Knicks' matchup with the Milwaukee Bucks on Tuesday with an apparent leg injury.

The 22-year-old center hurt himself after a dunk over Giannis Antetokounmpo in the first half. Porzingis landed awkwardly, causing his left knee to buckle. He had to be helped off the court.

Porzingis was named to his first All-Star team this season and is averaging 22.9 points and 6.7 rebounds per game.

The Knicks have not announced the extent of Porzingis' injury.