Shanghai Bobby, last year’s 2-year-old champion male, has been found to have a stress fracture and will be out indefinitely, his connections announced Thursday afternoon. Already off the Kentucky Derby trail following his disappointing fifth-place finish in the Florida Derby at Gulfstream on March 30, Shanghai Bobby was diagnosed with a pelvic stress fracture, according to a press release put out by Starlight Racing, which owns Shanghai Bobby along with Susan Magnier, Derrick Smith, and Michael Tabor. According to the release, Shanghai Bobby will need a 90-day rest period, but could make a full recovery. “Although it is disappointing that Shanghai Bobby has sustained this injury, perhaps this offers an explanation of his performance in the Florida Derby,” trainer Todd Pletcher said in the release. Shanghai Bobby went 5 for 5 as a 2-year-old including victories in the Grade 2 Hopeful, Grade 1 Champagne and Grade 1 Breeders’ Cup Juvenile. In two starts at 3, he finished second in the Holy Bull on Jan. 26 before running fifth in the Florida Derby.