GI Kentucky Derby champion Mage (Good Magic) stretched his legs around Pimlico Race Course Monday morning in preparation for a start in Saturday's GI Preakness S. The Gustavo Delgado-trained 3-year-old, who went to the track shortly after 8:30 a.m., jogged in the company of a pony once around the mile oval before galloping once around under exercise rider J.J. Delgado. "He looked good, quiet, relaxed," said Gustavo Delgado, Jr, his father's assistant. "There were only one, two, three horses on the track the same time he was. He was getting...