Rollins part or rotating middle infield
The Phillies used nine different Keystone Combinations this season.
Originally posted as "Phillies Blogathon: Hour 62"
The knee injury that kept Chase Utley from starting the season was the first in a series of events that led to the Phillies using nine different Keystone Combinations this season.
(Editors Note: For those of you under 60 years of age, the Keystone Combination is the second baseman/shortstop.)