How do MLB players get their uniforms clean?

The first time of the season my son slides, he’s going to have dirt in his pants for the next 3 months. We soak and spray but that ground-in dirt is here to stay. Oh, a lot of it comes out, but those pants will never look white again.

But MLB players show up with absolutely pristine uniforms every game. How do they clean them after getting so dirty? I can’t believe they just throw 'em away after every game.

They keep the stains out of baseball