Season with salt and pepper to taste.
Place the roast fat side down over Medium/ High Direct Heat for about 4 minutes.
Flip the roast and grill for another 4 minutes.
Move roast to preheated 180º C oven and continue to cook for 30 minutes or until internal temperature reaches 50ºC for medium rare, 55ºC for medium.
Remove and rest for 10-15 minutes.
Slice thinly across the grain to serve.