This is hardly the first time Rafael Nadal’s body has betrayed him. That much we know. What no one — not even the 22-time Grand Slam champion himself — can possibly pinpoint accurately is what comes next.
First things first: How seriously did Nadal injure his hip during a 6-4, 6-4, 7-5 loss to 65th-ranked Mackenzie McDonald in the Australian Open’s second round on Wednesday?
