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Rafael Soriano is next scheduled to pitch on Friday.
Soriano is currently scheduled to appear Friday against the Tigers, but that outing could be pushed back if the right-hander needs a procedure to address what Johnson described as "a little infection" of the wisdom tooth.
"I think from the X-rays they saw, it could be a problem," Johnson said prior to the Nationals' game against the Marlins. "He could need to have a root canal or something, I don't know, further examination from the X-ray. He hasn't complained or anything, but that's something you always look at."
Soriano was in his native Dominican Republic yesterday (an off-day for the Nationals) dealing with a family issue, but he was scheduled to return to Viera today.