After the Boston Celtics lost to the Milwaukee Bucks on Friday, Marcus Smart essentially ripped the NBA for overturning Giannis Antetokounmpo's sixth foul not once, but twice.

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For those who missed the game, here's what happened:

The Celtics wound up losing to the Bucks by a final score of 119-112. It's possible Boston would have won the game had the refs stuck to their original calls and fouled Giannis out.

Marcus Smart was arguably the best player for the Celtics on the night since All-Star small forward Jayson Tatum struggled mightily. The heart and soul of Boston, Smart finished with 23 points and four rebounds in 32 minutes of action.

For whatever reason, Tatum couldn't get it going against the Bucks, as he put up just five points on a woeful 2-of-18 shooting from the field.

The Celtics are back in action on Sunday against the Portland Trail Blazers, who won their first seeding game on Friday versus the Memphis Grizzlies in thrilling fashion. Smart and Co. will be going up against another superstar player in Blazers point guard Damian Lillard, as well as CJ McCollum and Carmelo Anthony.

With that said, Boston needs to be prepared for some calls to not go their way again since it's apparent superstar players in the NBA get some preferential treatment.