Limited to four starts over the prior two seasons because of elbow surgery and a shoulder injury, Carpenter was 17-4 with a league-leading 2.24 ERA for the St. Louis Cardinals. The 2005 NL Cy Young Award winner, Carpenter won 11 consecutive decisions from early July to early September.
Hill appeared in just 55 games in 2008 due to a concussion. He hit .286 for the Toronto Blue Jays this year and established career highs with 36 homers and 108 RBIs, the most among major league second basemen.
The awards were voted on by the 30 beat writers of MLB.com.