Investigators say the woman was taking trash to a dumpster in the 1100 block of North Knollwood when she was confronted by two men who beat her.
Police released a sketch of one man. They say he's 25-28 years old and about six feet tall.
And they say the second man has a tattoo like this on his neck. According to police, he also had a white pit-bull, possibly named "Dueces."