Clicking noise after brake repain

I just got all four of my brakes redone, total package. When I left the mechanic said he hear a clicking noise after he fixed the brakes and thought it was the speedometer cable. When I drive it the clicking noise only happens when I press the brakes and doesn’t seem to be coming from any of the wheels. It seems to be coming from under the car. A day after this, one of the wheels is now making a constant scraping noise. What might these noises be.

My guess is it will be a minor (cheap) item but you still are going to need someone there to take a look at it and locate the source, as it could be several things.  I would suggest a[b] local[/b] brake shop 

Good Luck