06/18/2008 11:00PM

Suffolk rider injured

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Jockey Tammi Piermarini will be sidelined indefinitely after being injured when she was unseated from her mount in Wednesday's ninth race at Suffolk Downs.

Piermarini, second at the time in the Suffolk rider standings, incurred whiplash and torn muscles in her neck. Piermarini, 41, led all jockeys at the track last year with 100 wins.

Piermarini was admitted to and treated at Boston Medical Center, with her release date uncertain.