In a mixing bowl, combine pineapple juice, soy sauce, brown sugar, and garlic powder to create the marinade.

Add beef chops to the marinade, cover, and refrigerate for at least 30 minutes.

Preheat the grill to medium-high heat.

Remove the beef chops from the marinade and place them on the grill.

Grill for about 6-8 minutes on each side or until the internal temperature reaches 145°F.

Let the beef chops rest for 5 minutes before serving.