Diamondbacks future ace Jarrod Parker plots full-speed return

Posted: Updated:
Arizona Diamondbacks pitcher Jarrod Parker, right, goes through drills as fellow pitchers look on at the team's spring training baseball facility in Scottsdale, Ariz. Monday, Feb. 14, 2011. (AP Photo/Marcio Jose Sanchez) By Marcio Jose Sanchez Arizona Diamondbacks pitcher Jarrod Parker, right, goes through drills as fellow pitchers look on at the team's spring training baseball facility in Scottsdale, Ariz. Monday, Feb. 14, 2011. (AP Photo/Marcio Jose Sanchez) By Marcio Jose Sanchez

SCOTTSDALE, Ariz. (AP) -- Of all the pitchers and catchers who began workouts for the Arizona Diamondbacks on Monday, probably none looms larger for the franchise's future than Jarrod Parker.

The 22-year-old right-hander is a non-roster invitee to the big club's training camp. By all accounts, his electric mid-90s fastball is intact after a year of rehabilitation following "Tommy John" elbow surgery.

Parker knows his major league debut is coming soon.

He may not crack the season-opening rotation, but sometime this season, probably in the first few months, he will get his chance to show whether the ultra-high expectations are warranted.