WWE Doctor Issues Statement Confirming Samoa Joe Injury

As noted, WWE has announced Samoa Joe has been pulled from the WWE Mixed Match Challenge show, and Elias will now team up with Bayley for the tournament.
Joe suffered an injury on Raw last night, and while it was initially speculated that the injury might be story line related, the injury is indeed legitimate as WWE.com has released the following:
WWE thanks the WWE Universe for voting to pick Bayley’s partner for WWE Mixed Match Challenge. Unfortunately, the Superstar selected,