text:  During spring training in a game against the Boston Red Sox , Kershaw gained much attention for throwing a curveball to Sean Casey that started behind Casey but at the end looped into the strike zone and struck him out looking . Kershaw was 0 – 3 and had a 2 @.@ 28 ERA with 47 strikeouts through 431 ⁄ 3 innings pitched in his first stint of the year with the Suns . He was then called up to the majors on May 28 , 2008 , but optioned back to Jacksonville on July 2 . 
  