His youngest daughter, Georgina, was doing "fine" Monday, said Mayor Michael Bloomberg, just days after she was thrown from her horse during an equestrian show in upstate New York.

Georgina Bloomberg, 27, was briefly knocked unconscious from the fall at a Syracuse show on Friday and was later diagnosed with a concussion.

She received an MRI Monday, her father said, adding that doctors need to determine whether cracks in her vertebrae were the result of her latest injury.

As a professional show jumping rider, Georgina has broken her leg, foot, collarbone and back, Bloomberg said.

This time, "she went flying," he added, but landed in a way that did not leave her severely injured.

"You always worry about it. It's a dangerous sport," the mayor told reporters at City Hall.

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