Rafael Nadal, a superstar of the grand slams, took a break from training. The Australian Open to take his wife, Xisca Perello, and their infant son on a cruise through Sydney Harbor. On Wednesday, when the group board a boat, the former champion No. 1 spotted protectively holding Rafael Junior in his arms. He and little son both dressed in white and navy blue for the trip. A friends joined by Argentinean former professional player Gustavo Marcaccio, a member of Nadal’s coaching staff. They took in the sights on one of the most well-known sections of sea.