by Jessica Martini, Brian DiDonato & Christie DeBernardis LEXINGTON, KY - The Keeneland November Breeding Stock Sale's two-session Book 2 opened Tuesday in Lexington with solid trade and a varied bench of domestic and international buyers. Bloodstock agent Arthur Hoyeau made the day's highest bid, going to $975,000 to acquire the group-winning mare Pollara (Ire) (Camelot {GB}) from the Claiborne Farm consignment. The 5-year-old mare was one of five to sell for $500,000 or more during Tuesday's session. Six reached that level at last year's first Book 2 session. In...