an Entity references as follows:
Rafael Nadal defeated Roger Federer in the final, 7–5, 3–6, 7–6(7–3), 3–6, 6–2 to win the men's singles tennis title at the 2009 Australian Open. It was his first Australian Open title and his sixth major title overall. Nadal became the first Spaniard to win the title. Novak Djokovic was the defending champion, but retired due to heat stress in the quarterfinals against Andy Roddick.