Police have released a sketch of a man wanted in the sexual assault of a 22-year-old woman who was grabbed from behind in the Mayfair section of the city.

On May 30, police said, the woman was forced to the ground about 1:15 a.m. while on the 2800 block of Rawle Street and indecently assaulted

Police described the assailant as a black male, in his 30s, weighing about 300 pounds, and about 6 feet 3 inches tall with a stocky build. His hair was black and cropped short. He was wearing a white T-shirt and black basketball shorts. Anyone with information is being asked to call police at 215-685-3251.    - Barbara Boyer