It happened on Sept. 13 at 9 a.m. near Yonge Street and Bloor East.
A 29-year-old woman was walking when an unknown man walked straight up to her and allegedly assaulted her.
The suspect then fled the area. Police described the attack as “completely unprovoked”.
On Saturday, police released security camera images of the wanted man, asking for help identifying him.
He is described as between 20 and 30 years old with a beard.
Police said he was last seen wearing a white/blue baseball cap, black wired headphones, a “cross” necklace, a black t-shirt with a white “Reebok” logo, light jeans, black with white running shoes, a dark camo backpack. He was also holding a dark phone.
Police are asking anyone who knows the identity of the suspect to contact them at 416-808-5300 or Crime Stoppers anonymously at 416-222-TIPS (8477).