D'Backs Could Promote Top Prospects Bauer, Parker

UPDATE (5:27 PM ET): Buster Olney reports the promotion of Jarrod Parker is almost inevitable.

We've seen Matt Moore, Drew Pomeranz, and may even be treated to two of the top three prospects of the Diamondbacks in Trevor Bauer and Jarrod Parker, according to Peter Gammons. Gammons says the two righties may be promoted for a taste of the majors.

Baseball America ranked Jarrod Parker as the top prospect in Arizona's organization before the 2011 season began. That was before Trevor Bauer joined the D'Backs, however. ESPN's Keith Law ranked the 22-year-old Parker No. 19 in his mid-season top 50 (subscription required):

Analysis: He has top-of-the-rotation stuff, but command has been slow to return after Tommy John surgery in late 2009. Preseason Ranking: 25

Trevor Bauer is now arguably the best prospect in the D'Backs system. Taken third overall in June's amateur draft, Bauer dominated the minors but has struggled lately. Baseball America had this to say of the UCLA product:

Bauer had the deepest repertoire of any pitcher in the draft, featuring a 91-96 mph fastball, sharp curveball and plus changeup while mixing in a splitter and two versions of a slider. He could be the first player from this draft to reach the majors, and it's not out of the question that he could help Arizona in the stretch drive this year.

Bauer has struggled recently, though. In his last two outings (4.2 innings), Bauer has allowed 17 earned runs and posting a poor 5/6 strikeout-to-walk ratio.