Lauren Matzek still can’t quite believe it. Her husband, Atlanta Braves left-handed reliever Tyler Matzek, a pitcher once so haunted by performance anxiety and a case of the yips that his baseball career had turned to ashes, is in the World Series. “I’m immensely proud of him,” Lauren said Monday on the eve of Tuesday’s Game 1 between the Braves and Astros at Minute Maid Park.