Trainer Dante Zanelli withdrew Tomcito from Belmont Stakes consideration.
The colt had a myectomy to correct a breathing problem after running seventh in the Peter Pan Stakes on May 10. Zanelli said Sunday that the colt suffered a "reaction. It's very depressing."
Tomcito is winless in three races in the United States after winning 4-of-5 in Peru. He was third in the Florida Derby, 12½ lengths behind Big Brown.
Meanwhile, Spark Candle won't run in the Belmont on Saturday, starting instead in the $100,000 Hill Prince Stakes (G3) on Friday.
More thoroughbreds: Two successful jockeys at Tampa Bay Downs in Oldsmar received suspensions for riding infractions. Carlos Montalvo, sixth-leading rider at the Downs this season, was given a two-week suspension at Prairie Meadows in Altoona, Iowa, for not riding to the wire. According to the Daily Racing Form, Montalvo eased his mount, Spring Training, near the finish line May 26, losing by a nose to Lusk. Montalvo said he believed his horse was beginning to prop. He is expected to appeal. Jose Lezcano, Downs' 2005-06 riding champion, will be out of action for eight days at Monmouth Park in Oceanport, N.J., the Daily Racing Form reported. Lezcano is being suspended from Wednesday through June 13 for an infraction last year on Red Birkin, who was disqualified from a victory. Lezcano received a five-day suspension and was given three additional days by the New Jersey Racing Commission after he withdrew his appeal. He is the leading rider at Monmouth Park.
Derby Lane: McAllister Kennels became the first operation to record 600 victories in a meet when Flying Macbeth won a Grade A race Saturday night at the St. Petersburg greyhound track. McAllister, which recorded a week-high 12 victories, leads the standings with 601 wins, 212 more than Cal Holland. Charter Kennel is third with 382, followed by Filipelli & O'Donnell with 371 and Floyd & Porter with 365.
Times correspondent Don Jensen,