Yankees closer Mariano Rivera seemed to tense up while talking about his sore right triceps over the past three days. Rivera was seen wearing a massive heat wrap on his right arm before he threw on Thursday afternoon, and said he's been receiving daily treatment. "You guys don't want to know how much (treatment)," Rivera joked. "A lot. I just need to stay on top of it and do my treatment." Rivera said the injury may be one he has to deal with all season, which is why he's decided to skip the All-Star Game. Rivera was chosen by the AL's manager, Rangers skipper Ron Washington, as his closer.