Rookie Conor Jackson has won the Diamondbacks starting job at first-base, but Arizona has a solid backup in Tony Clark should Jackson struggle.

Lowest AB/HR Ratio, 2005
(Min 15 HR)

Andruw Jones, Atl 11.49
Tony Clark, Ari 11.63 (349/30)
Manny Ramirez, Bos 12.31
Alex Rodriguez, NYY 12.60
David Ortiz, Bos 12.79