Carlos Torres needed only 58 pitches, a clutch two-out rally and some heavy rain to complete the first perfect game in Charlotte Knights history. The 26-year-old right-hander retired all 15 batters he faced and Josh Kroeger capped a five-run fifth inning with a grand slam as the Knights blanked the Pawtucket Red Sox, 5-0, in a rain-shortened game that qualified as the franchise's second no-hitter since joining the International League in 1993.