Cirque du Soleil's "Wheel of Death" stunt got a little too real Friday night, when an acrobat slipped during a performance at Las Vegas' Aria Resort and ended up in the hospital. The performer, who CNN reports has not been named, is in stable condition and is expected to be released soon. But it's the latest safety issue for the acrobatic circus; performer Sarah Guyard-Guillot died in June when a wire broke, and Nevada's OSHA board told Cirque du Soleil on Tuesday to pay $25,000 in safety fines in her death. Cirque du Soleil has said it will appeal. (More Cirque du Soleil stories.)