The John Sadler-trained Flagstaff (Speightstown) tested positive for Clodronic Acid, a bisphosphonate otherwise known as Osphos, after finishing second at Santa Anita Sept. 27 last year, according to a California Horse Racing Board (CHRB) complaint. As per the complaint, dated Mar. 24, an Osphos positive is a Class 1, Category A penalty. A split sample confirmed the original finding, the complaint states. Sadler is currently on a year's probation in accordance with a settlement agreement and mutual release with the CHRB, as part of which Sadler was fined $15,000 and...