The Diamondbacks have claimed outfielder Roger Kieschnick off waivers from the Giants, Andrew Baggarly of CSN Bay Area reports (via Twitter). The Diamondbacks have since officially announced the move via press release, adding that they've optioned Kieschnick to Triple-A Reno and placed Patrick Corbin on the 60-day disabled list to create a spot on the 40-man roster.
Kieschnick, who was designated for assignment at the end of Spring Training, going just 5-for-29 without an extra base hit in 34 plate appearances. He did draw five walks, but he also whiffed 13 times. Kieschnick, 27, hit .202/.295/.226 in 95 plate appearances after making his Major League debut last season.
Baseball America ranked Kieschnick 29th among Giants prospects this offseason, praising his strong arm in right field. However, BA notes that he's never produced the power the Giants and others expected him to after being selected in the third-round of the 2008 draft. He's ranked among San Francisco's Top 30 prospects in each of the past six seasons, per BA, twice cracking the Top 10. A career .275/.331/.485 hitter (with even better numbers at Triple-A), BA notes that Kieschnick has been slowed by a recurring back injury and a stress fracture in his shoulder suffered after crashing into an outfield wall.