Here's Ilya Ezhov, goaltender for the KHL's SKA St. Petersburg, proving that goalies are athletes, too.
Honestly, I'm more impressed by how smoothy he transitions from not quite sticking the landing to striking a badass Super Man pose than I am with the back flip itself.
Update: Yes, it's CGI. SKA puts out a lot of these kind of goofy promo reels. Here's the full video.