text: Federer can win all four: Laver ROD LAVER, the last of only two men to win tennis #39; calender year Grand Slam, believes Roger Federer can become the first modern-day player to emulate his rare feat.
inputs: Federer can win all four: Laver ROD LAVER, the last of only two men to win tennis #39; calender year Grand Slam, believes Roger Federer can become the first modern-day player to emulate his rare feat.