Athletics closer and reigning American League Rookie of the Year Andrew Bailey has been shut down for five to seven days with tennis elbow. "It's just a little discomfort," Bailey told MLB.com. "I felt something after my last outing [Sunday], so I figured I should have it checked out. I'll just be doing some therapy and give it some rest. "Last year was probably the heaviest workload on my arm, so this is probably just from kicking it back up and my arm trying to get used to it again."