Holy Bull S. (G3) winner WINSLOW HOMER (Unbridled's Song) is off the Kentucky Derby (G1) trail after the discovery of a stress fracture in a cannon bone, according to a statement by owner Rick Porter on his website. "Winslow Homer had a little sensitivity in his shin Sunday morning. We went over him with a fine-toothed comb and found a small stress fracture in his cannon bone, resulting in Winslow having to go on the shelf for the next 60-90 days," Porter said. "Winslow should return to training in early April. This is another tough luck story for me and the Fox Hill (Farm) fans but hopefully we will have a huge summer and fall with Winslow Homer." Conditioned by Tony Dutrow, Winslow Homer has won his last three races since dropping his Delaware Park debut by a neck in July. He rebounded from that third-place finish to record a three-length maiden win at Saratoga over seven furlongs on August 22. He returned on November 20 and captured an allowance over a mile at Philadelphia Park by 12 1/2 lengths. Winslow Homer defeated Jackson Bend (Hear No Evil) by three parts of a length when making his stakes debut in the January 23 Holy Bull over a one-turn mile at Gulfstream Park. The gray colt has bankrolled $152,825. This is the latest in a series of setbacks for Fox Hill Farm-owned Derby candidates in recent years. Rockport Harbor and Old Fashioned, both by Unbridled's Song, were sidelined due to injury before the Kentucky Derby in 2005 and 2009, respectively. The stable campaigned Kentucky Derby runners-up Hard Spun (2007) and Eight Belles (2008).