While both Nishikori and Dimitrov both played Nadal tough, it wasn't enough. And let's not even talk about Fed's disappointing performance against him (again). It's become crystal clear that the ONLY player who can challenge Nadal on a consistent basis is Novak, and he's been having 5th set jitters in most of the grand slams over the past couple of years. Novak is Roger's only defense against Nadal breaking his GS record, so maybe it's not too late to invite Nole and his family over for a gluten-free BBQ?