What's causing this noise in the rear wheel?

[Nozza123]

Hey guys, I need help figuring out what this strange noise is when I turn my rear wheel. I recently got my bike serviced, went riding on an extreme track, then.. crashed. I started pedaling and the rear wheel kept making a weird noise. It sounds like it's rubbing against something? I may have bent the disc rotor? Here is a video: https://vid.me/tpy10