LOS ANGELES -- Battling a strained left hamstring injury, Dodgers left fielder Juan Rivera was out of the lineup for Friday's series opener against the Nationals.
However, Rivera did take ground balls and batting practice on Friday to see how the hamstring had progressed. The team still believes the injury is day to day.
"We are still hopeful that this thing isn't going to linger," manager Don Mattingly said. "He feels a lot better today then he did yesterday."
Rivera strained the hamstring running out a sixth-inning infield single on Tuesday against the Braves. He was out of the Dodgers' lineup on Wednesday.
"We are still hopeful that we won't have to put him on the disabled list, and that it will just be a couple of days," said Mattingly.
In 17 games with the team this season, Rivera is batting .263 with one home run and nine RBIs.