Tomoyuki Kubota was sent back to Osaka because he was having problems with his right elbow. The Hanshin Tigers announced today that he had surgery at a hospital in Osaka on Thursday and was discharged today. He will be re-evaluated after he spends a few days at home resting. The organization should have a better idea of when he will be able to return after his re-evaluation.
Source: Sponichi 2/7/2014