Top sirloin
Appearance
The Top Sirloin is cut from the loin of a steer or heifer. Top Sirlon steaks differ from sirloin steaks in that the bone and the tenderlon have been removed. American butchers call a thick top sirloin steak a chateaubriand, although the French reserve that term for a much better cut from the tenderloin. Substitutes: flank steak OR tri-tip toast