San Francisco Giants pitcher Randy Johnson greets his son, Tanner, after he achieved his 300th career win after the game against the Washington Nationals at Nationals Park in Washington on June 4

San Francisco Giants pitcher Randy Johnson greets his son, Tanner, after he achieved his 300th career win after the game against the Washington Nationals at Nationals Park in Washington on June 4

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San Francisco Giants pitcher Randy Johnson greets his son, Tanner, after he achieved his 300th career win after the game against the Washington Nationals at Nationals Park in Washington on June 4

San Francisco Giants batboy Tanner Johnson, the son of Giants starting pitcher Randy Johnson, heads back to the dugout during a baseball game against the Washington Nationals, Thursday, June 4, 2009, in