TORONTO -- Roger Bernadina, who was forced to leave Monday's series opener against Toronto with a strained right hamstring, had an MRI on Tuesday which revealed no tear.
Nationals manager Davey Johnson said Bernadina will likely only need a few days off.
"He'll be back soon," Johnson said. "He just tweaked it. He has been swinging the bat well, playing real good."
Bernadina entered play Tuesday hitting .247 with two homers and 12 RBIs.