Place roast in roasting pan on a piece of heavy aluminum foil large enough to wrap meat in.
Douse roast with Worcestershire sauce; seal meat in foil.
Bake in preheated oven at 350° for 4 to 5 hours on middle rack.
Remove roast from oven; allow it to sit twenty minutes before slicing.
Save meat juices and put in a 1-gallon bag with sliced meat.