Rafael Nadal is recovering from the hip injury he has been suffering again since the end of February. The Spanish player is swimming in Manacor in his academy, and on Instagram he shared a video featuring him doing it. 'Keep improving every day', Nadal wrote. The world No. 2 played just five matches this year, all of them at the Australian Open, where he retired down 2-0 in the fifth set against the Croatian Marin Cilic.