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Chicago White Sox starter Phil Humber, right, throws one of his final pitches of his perfect baseball game against the Seattle Mariners, Saturday, April 21, 2012, in Seattle. The White Sox won 4-0. (AP Photo/Elaine Thompson)

White Sox's Humber tosses perfect game

Humber threw the first perfect game in the majors in almost two years, leading the Chicago White Sox to a 4-0 victory over the Seattle Mariners on Saturday, April 21, 2012.