The GI Mister D. S., formerly known as the Arlington Million, will be run with a purse of $600,000 Aug. 14 at Arlington Park, in what is likely to be the final year of racing at the Chicago-area plant. The Million, along with the rest of its traditional accompanying stakes, was scrapped last year due to the uncertainty surrounding racing dates and purses at the track. Renamed for longtime Arlington owner Dick Duchossois, the Mister D. will be the centerpiece of an eight-stakes card that also includes the 1 3/16-mile...