Preheat oven to 425°. Line a small baking sheet with foil.
Place pork on prepared pan. Sprinkle with salt and pepper.
Bake until a meat thermometer inserted in center registers 155°, about 30 minutes. Let rest for 5 minutes before slicing ½ inch thick. Refrigerate for at least 3 hours or overnight.
In a small bowl, combine mayonnaise, curry powder, and paprika. Spread mayonnaise mixture onto buns. Place a radish slice, a pork slice, and arugula on bottom half of buns. Cover with top half of buns. Serve immediately, or refrigerate for up to 1 day.
Recipe by Southern Lady Magazine at https://southernladymagazine.com/poolside-pork-sliders-recipe/