The Tattersalls December sale began its nine-day stand in Newmarket Monday, with a colt by hot young sire Lope de Vega (Ire) leading a buoyant yearling session. Emma Berry has a complete recap of the day's session. The New York State Gaming Commission unanimously approved new drug rules setting threshold limits for 24 medications. Plus, pedigree analyst Andrew Caulfield reflects on the remarkable success of Personal Ensign. The champion mare is the third dam of Saturday's GIII Delta Downs Jackpot S. winner Ocho Ocho Ocho (Street Sense). All that and more in today's TDN!