Brad Keselowski escaped Tuesday's crash without suffering any injuries. Screen Shot/@keselowski

Just after Brad Keselowski hit his top speed during an organizational test on Tuesday at Watkins Glen International, the unthinkable happened.

According to NASCAR.com, Keselowski had just registered a speed of 124.6 mph when the rear brakes of his car failed, sending the driver head-on into the tire-pack barrier.

"Just the pedal went to the floor," Keselowski said. "It means that you've lost brakes on one of the corners. At a track like this, you're already on the edge. You don't have any room or margin for something to fail. That's the way it is."

Keselowski somehow managed to escape the crash unharmed, but thought it would be best to cancel his scheduled Facebook live session.

The crash occurred on the first day of a two-day organizational test leading up to the Aug. 7 Cheez-It 355 at the Glen.