(Manuel Balce Ceneta/AP)

Tracy, who is 6 for 18 as a pinch-hitter and leads the majors with nine pinch-hit RBI, will visit Dr. William Meyers, the specialist who performed his double sports hernia operation in November. Tracy had hoped his latest injury was merely scar tissue popping, but a day later he was not optimistic.

“My gut is, it’s not the scar tissue, because it’s a different spot than the surgery,” Tracy said. “I think it’s two separate injuries.”

The Nationals will hold off on making a roster decision until after Tracy receives the MRI. Tracy – whom Manager Davey Johnson called “a weapon” off the bench – is not certain how long he could miss.

“It’s hard to say,” Tracy said. “The first couple days after you do something is always the worst. I’m just going to keep icing it, treating it, see what happens. I don’t want to make a guess. I think the MRI will dictate.”

If Tracy misses an extended amount of time, the Nationals will turn to Brown, the 26-year-old they acquired in December 2010 from the Oakland A’s, along with reliever Henry Rodriguez, for Josh Willingham. Brown was out of the lineup both yesterday and today for Syracuse.

Brown had a dismal 2011, but he has turned around his career this year. In his second season with the Nationals’ organization, Brown has dominated International League pitching. He is hitting .297/.399/.584 with 11 home runs, the most of any player in the organization. Before he sat the past two days, Brown had hit a homer in five straight games.

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