Milwaukee Bucks star Giannis Antetokounmpo is reportedly out for the remainder of Game 1 of the team's playoff series with the Miami Heat due to a lower back contusion, according to Jamal Collier of ESPN.

Giannis Antetokounmpo appeared to be hurt after taking a fall in the first quarter of the game against the Heat. He briefly returned, but returned to the locker room again later on.

Antetokounmpo was seen heading to the locker room with 1:37 left in the opening frame. Initially, it seemed like Antetokounmpo would be able to return, but now the Bucks are without him for the rest of this game.

Here's the play Giannis appeared to sustain an injury:

The Bucks trail by double digits at halftime, and will have to make a big comeback without Antetokounmpo in Game 1. Regardless of the outcome of Game 1, it will be worth monitoring whether the back contusion will keep Antetokounmpo out for an extended period of time.

If Antetokounmpo's injury keeps him out for an extended period, it could greatly change the Eastern Conference playoff picture. The Bucks and the Boston Celtics have been viewed as the favorites to come out of the Eastern Conference, and this injury could potentially clear a path for the Celtics to make the NBA Finals for the second season in a row.

It will be interesting to see whether the Heat close this game out or not, and if the Bucks can pull a comeback without Antetokounmpo. Then after the game, all the attention will turn to the post-game press conferences for updates on Antetokounmpo.