The 41-year-old woman was jogging at 11:40 a.m. when she was allegedly jumped by the suspect, who threw her to the ground.
Police say he attempted to rip off her jogging pants, and she started screaming.
She pushed the suspect off of her and he fled.
The victim was taken to Beth Israel Hospital, where she is being treated.
The suspects was described as a man in his late teens, with a stocky build and facial hair, wearing a grey hoodie sweatshirt and green pants.
No arrests were immediately made.
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