Jon Niese did not undergo heart ablation surgery before Christmas as originally planned. The procedure had been scheduled in order to correct the arrhythmias he has experienced throughout his career, but doctors at the Cleveland Clinic in Ohio determined that it was not necessary. "The doctors just said that it was nothing major and that I didn't need to have surgery," Niese said via telephone Monday evening. "I'm just going to go on as normal and that's it. It's a really good thing."