Jim Ross updated the blog section of his website yesterday and said the following about John Cena's injury:
"WWE.com reporting that WWE Champion John Cena has sustained an injury while on the European Tour. The report states that Cena has issues with his right, Achilles tendon which can be a dicey matter. Achilles injuries can be puzzling especially if they aren't torn and don't require surgery. In other words these types of injuries can linger if one doesn't get the proper rest and allow the tendon to heal. The injury is legit as Cena has been suffering through this matter for several days even though he hasn't missed any bookings. Always said the man has the work ethic and toughness of an offensive lineman which is a good thing."