"My gut is, it's not the scar tissue, just because it's in a different spot. I think it's two separate injuries," Tracy said.
The injury occurred in Saturday's 8-4 victory over the Braves. With a runner on second and the game tied at 4, Tracy hit Kris Medlen's 1-0 pitch into the gap in left-center field for a double, scoring Ian Desmond. It was Tracy's Major League-leading ninth pinch-hit RBI, but he came up hobbling while running to second base.
Athletic trainer Lee Kuntz immediately came to Tracy's aid. A couple of minutes later, Tracy left the game.
Tracy is still not sure if he will go on the disabled list, but Johnson said the Nationals will make a decision on a roster move on Monday.
Meanwhile, outfielder Corey Brown was not in the lineup for Triple-A Syracuse for the second day in a row and is on his way to Miami to join the Nationals on Monday. It is still not known if he will be put on the 25-man roster.
Brown is having a nice comeback season, hitting .297 with 12 home runs and 30 RBIs for Syracuse. He has hit a home run in five straight games.
Johnson also has not ruled out Mark DeRosa being activated from the disabled list during the Marlins series. DeRosa, who hasn't played since late April because of a left oblique strain, took batting practice with the team on Sunday and had a throwing session without any problems.
"I'm hoping I'm activated pretty soon," DeRosa said. "I took BP today and I felt pretty good. I'll see how I recover tonight and get back in the cage [Monday] before the day game. We'll see where we are at."