2010 Dodge Avenger

I am noticing a couple things happening over the last week or so with my Dodge Avenger. First thing, When I accelerate between 40-70 MPH, my car has a slight wobble to it. When I hit the brakes however, the wobble becomes more intense. The last thing I noticed was a faint knocking sound coming from my drivers side front wheel area. The sounds is more noticeable while turning left or right, but does also happen when I am driving straight and the front drivers side tire has worn out just around the outside edge of the tire...no other tires have worn out like that. Can you help me diagnose my problems?

Thanks