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Gronkowski doubtful for Saturday

Posted by ESPN.com's Ted Miller

Arizona tight end Rob Gronkowski, who missed the Wildcats opener vs. Central Michigan with a back injury, is doubtful for the Northern Arizona game on Saturday.

While he might see some action during practices this week, the most probable scenario is Gronkowski resting this weekend -- the Lumberjacks are an FCS team -- so he can be as healthy as possible for the Sept. 19 game at Iowa.