Nishikori and Nadal both hold, and it's 4-3 Nishikori to serve, but he has called the trainer. Trainer is on taking care of his back, but no official MTO. Oh my. Nishikori so close to the finish line. Two more holds will do it. Rafa needs some divine intervention the way Kei has been playing. He's simply outplaying Nadal, hitting strong to his backhand wing, opening up the court, and hitting sharp angles to the forehand. If Rafa gets to those, then Kei hits behind Rafa as he runs to cover the backhand. Same patterns.
Respectfully,
masterclass