In an update on WWE passing on signing Japanese women’s wrestling star Io Shirai earlier this year, the issue was not due to Shirai’s back and neck as was first suggested, but rather due to an issue that the company found with her heart when she underwent medical testing, according to a report from The Wrestling Observer.

The report notes that Shirai had been cleared by doctors in Japan from both her neck and her heart, but when she underwent WWE’s medical testing, doctors suggested that the company consider passing on signing her.