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Chicago Cubs reliever Brad Wieck will miss an undetermined amount of time after he underwent a procedure to correct an abnormal heartbeat.
Per an official statement from the Cubs (h/t ESPN's Jesse Rogers), Wieck had a cardiac ablation earlier this week at Northwestern Hospital.
"Brad will rest and rehab for the next week and be evaluated further to establish a timeline for resumption of pitching activities towards the end of the next week," the team said.
This article will be updated to provide more information on this story as it becomes available.