San Francisco Giants pitcher Matt Cain threw a perfect game against the Houston Astros in a 10-0 victory.Cain struck out 14 Astros, tied for the most strikeouts ever in a perfect game.San Francisco right fielder Gregor Blanco made the defensive play of the game laying out on a dead sprint to haul in a fly ball at the warning track.The last Giants no-hitter was thrown almost 3 years ago by