SPANISH tennis player Rafael Nadal beat Serbia’s Novak Djokovic 3 -1 in the final. He won his first US Open championship (锦标赛) last Tuesday. This is a big success in his tennis career (职业). The 24-year-old has nine Grand Slam (大满贯) titles. Now, people focus on when he will become the best player of all time. “My goal, all my life, is always the same: keep improving,” said Nadal.