OZONE PARK, N.Y. – Having three children follow his career path is both a source of pride and fear for the retired jockey Robbie Davis. On Sunday, the fear factor ratcheted up several notches when two of his children were involved in a three-horse spill in the ninth race at Aqueduct. Fortunately, and somewhat remarkably, neither Robbie’s daughter Katie Davis, 24, nor son Dylan Davis, 28, were seriously injured in the accident. A third rider, Anthony Suarez, injured his sternum – it was unclear Monday whether it was a bruise or a fracture – which likely will sideline him for a few weeks. Also remarkable was that none of the three horses involved in the spill suffered more than superficial cuts and scrapes, according to their trainers. Jackie Davis, another child of Robbie’s, also rode in the same race but was not involved in the accident. “I was ready to just quit,” Robbie Davis said Monday at Belmont Park, where he trains a small string of horses. “But you can’t quit. I got to be strong for them. It was super, super hard.” Robbie Davis, who rode 3,382 winners in a career cut short in 2002 by chronic knee pain, said he was at home watching the race on television when the spill occurred. Suarez was aboard 48-1 shot Thirty Percent, who was vying for the lead with Chief Assignment. At the three-sixteenths pole, Thirty Percent came in a step, Chief Assignment, under Harry Hernandez, came out a step, and Thirty Percent’s left front foot clipped the back heel of Chief Assignment, who would go on to win the race. Thirty Percent went down, unseating Suarez. Katie Davis was on Tottie Royer, who tripped over Thirty Percent, bumped into the rail, and unseated her. Dylan Davis was on Humbolt Street, who attempted to leap over Thirty Percent, unseating Davis. Humbolt Street never fell. Both Davis siblings went to first aid and then to Jamaica Hospital for evaluation. Dylan Davis’s left shoulder popped out of its socket, but he was able to pop it back in. He was scheduled to undergo an MRI on Monday, according to his sister Jackie. Katie Davis had pain in a shoulder, leg, and ankle. X-rays on both Davis siblings were negative, and they were released Sunday night. “It just reminds me the kind of thick skin you have to have for this game,” Robbie Davis said. “It just brought back so many emotions that came out of me, I didn’t know what to do with myself. I hit the ceiling when that first one went down.” Jackie Davis, who finished seventh on Patrolikeachampion, said she wanted to jump off her horse before the finish of the race to check on her siblings. “I’m freaking out,” Davis, 28, said. “The way I saw the spill, I thought somebody broke a leg.” All three Davis children are named to ride Friday at Aqueduct, with all three having mounts in the ninth race, though Katie’s horse is on the also-eligible list. Robbie Davis will be watching – with his eyes closed. “I can’t even watch,” he said. “I say to myself, ‘How am I letting them do this? Isn’t there something else we can do?’ But they’re trying so hard. They’re riding the bottom of the barrel, and it’s difficult for them. But, thank God, they’re okay.” Meanwhile, Suarez was riding his first mount at a New York Racing Association track and his first mount of the year. He is a salaried exercise rider for Mark Tasso, the trainer of Thirty Percent. Tasso claimed Thirty Percent out of his previous start and said Suarez had gotten along with him so well in the morning that he gave him the mount. “He’s kind of a difficult horse to handle, bullheaded,” Tasso said. “I had Tony on him, and the second day he was on the horse, I said, ‘There’s my jockey.’ You don’t know how many of these kids are around that don’t get the chance.” Tasso said Suarez, who lives with him, was kept in the hospital Sunday night and was to be reevaluated Monday before being released.