Former Australian Open tournament director Paul McNamee thinks the efforts Rafael Nadal put up in Australia are maybe now catching up to him. After skipping almost the entire second half of the 2021 season due to a lingering foot issue, Nadal returned to action in Australia, where he won the Melbourne Summer Set and Australian Open. Unfortunately, Nadal is again experiencing problems with his foot as on Thursday he suffered a surprise defeat to Denis Shapovalov in Rome. After the match, Nadal revealed his troublesome foot was causing him great pain. “Rafa is clearly not performing op …