Watch: Federer takes a spill in 5th set with Raonic

Here's something you don't see everyday.

Roger Federer rolled his ankle in the fifth set versus Milos Raonic, causing him to tumble to the Wimbledon grass. After a quick call for the trainer, Federer was able to continue on.

The normally smooth Federer is used to gliding around the court with ease, so Raonic's shot making is clearly making the 17-time major champ uncomfortable.