Casey was injured as he stretched to catch second baseman Jose
Castillo's throw on John Mabry's infield single in the third
inning. Mabry appeared to trip as he crossed the bag and, according
to Pirates manager Jim Tracy, may have clipped Casey with his hip
Casey took several strides toward the pitcher's mound before
dropping to his knees in obvious pain. He was assisted off the
field and needed help getting to the Pirates' clubhouse before
being taken to a hospital for tests.
Casey, traded by the Reds to the Pirates during the offseason,
returned to the lineup Friday after not starting three games
because of a bruised left rib cage muscle.
The first baseman missed the final 16 games of last season with
the third concussion of his career, also after being injured in
Pittsburgh. He was accidentally struck in the head by Pirates
catcher Humberto Cota's elbow as Cota was running out a ground ball
during a Sept. 16 doubleheader.