The Arizona Diamondbacks designated veteran outfielder Jose Cruz, Jr. for assignment following Wednesday's game at Milwaukee. Cruz is hitting a career-worst .213 with 12 home runs and 28 RBI in 64 games this season, his first with the Diamondbacks. The 31-year-old was acquired by Arizona from Tampa Bay for lefthanded pitcher Casey Fossum in February. The ninth-year veteran, who is one hit shy of 1,000 for his career, was cut loose to make room for highly-regarded prospect Conor Jackson. Cruz owns a .248 lifetime average with 187 homers and 563 RBI with Seattle, Toronto, San Francisco, Tampa Bay and Arizona. He has hit at least 20 home runs in four of the last six seasons, including a career-best 34 with the Blue Jays in 2001. Jackson, a first-round pick by Arizona in the 2003 draft, was recalled from Triple-A Tucson after the Diamondbacks' 3-0 victory over Milwaukee on Wednesday. The first baseman/outfielder was hitting .354 with eight homers and 73 RBI with the Sidewinders, while his 38 doubles is the second-most in the minors this season.