Grade-I winner One in Vermillion (Army Mule) was euthanized Friday at a clinic in Phoenix due to the effects of laminitis, according to his owner Jonathan Kalman, in a story posted by the DRF. According to that story, the H. Allen Jerkens Memorial S. victor had been preparing for a trip to Kentucky for the Keeneland January sale, where he was slated to go through the ring as a stallion prospect, when a farrier noticed the colt was foundering in his opposite foreleg of the injured fetlock sustained during a...