Carlos Alcaraz gets tattoos to celebrate Grand Slam titles, so he plans to get ink of a kangaroo if he can win the Australian Open to complete a full collection from the four most prestigious events in tennis. Alcaraz moved closer to becoming, at age 21, the youngest man with a career Grand Slam, overcoming a bit of a blip in the first set he’s dropped at Melbourne Park this week for a 6-2, 6-4, 6-7 (3), 6-2 victory over 33rd-ranked Nuno Borges of Portugal on Friday in the third round. “A kangaroo, that’s for sure,” Alcaraz said with a wide smile Friday.