On Saturday, YouTube sensation MrBeast posted a video that pitted celebrities against professional athletes.

From Ronaldo to Noah Lyles to Bryce Harper, MrBeast has featured some of the best athletes in the world.

For the Philadelphia Phillies star, Harper had to compete against Big Justice, a young man who rose to fame with his father AJ after posting the viral “Costco Guys” video on TikTok.

Big Justice and Harper played for $100,000. If Harper had won, he would have received $100,000 to donate to any charity.

If Big Justice had won, he would have gotten $100,000 for himself.

To do it justice, MrBeast had Harper hit home runs in a real, MLB-caliber stadium.

MrBeast, whose real name is James Donaldson, put up a Little League-sized fence for Big Justice.

Harper and Big Justice had 10 swings to determine the winner.

During his seventh swing, Harper hit a ball out of the stadium, to which MrBeast joked, “I think they need to build bigger stadiums for Bryce.”

Harper finished his run with just four home runs, but it would be fair to say he took it easy to have some fun.

During Big Justice’s round, he used a metal bat and got off to a hot start, hitting two home runs in his first four swings.

In a 4-4 tie with two swings remaining, he hit his fifth home run to win the challenge and take home the prize money.

Harper was praised as a great teammate and member of the community during his time with the Phillies.

During the video, it was clear that the multiple MVP Award winner was happy to be there, jumping up and down for Big Justice as he won.

It was all in fun and seemed like a great time for the child, who said it was the best moment of his life and started crying at the end.

Certainly, it was a special moment to share the field with an all-time great MLB player.