Preheat the oven to 425°F.
In a small bowl, stir together the garlic, rosemary, thyme, Dijon mustard, Worcestershire sauce and olive oil with 1/4 teaspoon black pepper.
Pat the roast dry on all sides then place it in a baking dish, fat side up.
Slather the dijon mixture all over the top of the roast then place it in the oven for 15 minutes.
Reduce the oven to 375°F and continue cooking the roast until it reaches an internal temperature of 145°F (for medium-rare), 40 to 45 minutes.
Remove the roast from the oven, tent it with foil and let it rest for 10 minutes before slicing and serving.