An amateur MMA fighter lost his glass eye after receiving a kick to the head.

During an unregulated fight in Michigan, Alan Grays absorbed a rocking kick to the head that knocked him to the canvas. The power of the kick even dislodged his prosthetic eye, which can be seen rolling away on the floor.

The referee almost stepped on the glass eye.

According to mmaUNDERGROUND, this is the first time that a bout has ever been stopped because of a lost prosthetic eye. That doesn't come as a massive surprise.

[via mmaUNDERGROUND on YouTube]