Echo Zulu (Gun Runner), last year's champion 2-year-old filly, will be sent to Kentucky for additional tests after being scratched behind the gate before Saturday's GI Acorn S. at Belmont Park. The filly was scratched by the track veterinarian due to lameness in her left foreleg, but X-rays taken Saturday were all clean, according to trainer Steve Asmussen. "She is giving us all the signs that we want to see," said Scott Blasi, assistant to Asmussen, who added that the filly will be shipped to Kentucky for a full evaluation...