#18. The Arizona Diamondbacks: MLB 2013 Preseason Power Rankings

#18. The Arizona Diamondbacks Team Ace: Ian Kennedy Most Valuable Position Player: Aaron Hill Breakout Candidate: Paul Goldschmidt Notable Offseason Additions: Martin Prado, Heath Bell, Cody Ross, Randall Delgado Notable Offseason Losses: Justin Upton, Chris Young, Trevor Bauer Biggest Team Weakness: Shortstop