Preakness Stakes winner Summer Squall got sick Saturday afternoon and will sit out Sunday's $1 million Super Derby, ruining his long anticipated rubber match with Kentucky Derby victor Unbridled, trainer Neil Howard said.

Howard said the colt was suffering from a mildly elevated temperature and a lack of appetite, but a local veterinarian assured him and owner Dogwood Stable that the unspecified illness was not serious."He's got some kind of little bug. He's just not 100 percent," Howard said. "I hate not to run. I'm beside myself, but I wouldn't run an allowance or a stakes horse under these circumstances, let alone what in my eyes is the best horse in the world."

Howard said he hoped the illness would not ruin tentative plans to cap the colt's campaign for the 3-year-old championship with a start against the nation's top older horses in the $3 million Breeders' Cup Classic Oct. 27 at Belmont Park.

"I don't know for sure," Howard said, "but I think it's fair to say it's not ruled out. We have to see how fast he gets back."