Lovullo said RHP Drey Jameson (elbow) had some discomfort in his arm during his throwing program.
Gurriel, Thomas hit 3-run homers, D-backs beat Cubs 6-4 in showdown of NL wild-card contenders
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X-rays were negative and Lovullo said he has him penciled in for Thursday's game.
Arizona Diamondbacks overcome early 4-run deficit to beat Colorado Rockies 12-5
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