Norichika Aoki felt discomfort in his left hamstring after running to first on a grounder to third in the 6th inning of tonight's game against the Yomiuri Giants. He was replaced on defense in the 7th inning as precaution.
UPDATE 4/27 @ 8:30am - The Swallows apparently don't think it's a hamstring strain. Aoki told reporters that he felt some discomfort and couldn't run at full speed. The team will decide on whether or not he can play today after seeing how he's feeling.