Hanley Ramirez hurts hamstring

SAN FRANCISCO -- Los Angeles Dodgers shortstop Hanley Ramirez was helped off the field in the top of the sixth inning Friday night of a 2-1 loss to the Giants with what the team later called a left hamstring injury.

Ramirez, aboard on a leadoff walk, grabbed the back of his left leg just above the knee after getting thrown out sliding into third as he tried to go from first to third on A.J. Ellis' single. Replays showed he might have hurt his hamstring rounding second base. He was helped off the field by the athletic trainers.

Manager Don Mattingly considered it a significant injury among the several to plague the club already this season. Ramirez began the season on the disabled list after tearing a ligament in his right thumb in San Francisco's ballpark during the final of the World Baseball Classic for the champion Dominican Republic in March. He had surgery March 22 -- and he had just come off the DL from that injury Monday.

"It sounds like he got it pretty good," Mattingly said. "It's usually a pretty good amount of time. It's not like he's going to be back in a couple days."

Mattingly and GM Ned Colletti met afterward to discuss the team's infield options considering second baseman Mark Ellis still could need a DL stint.

"We can't keep losing guys at this rate," Mattingly said. "This is going to end. Right now it doesn't look very good. ... I'm not confident about anything at this moment."

Ramirez was hitting .455 with one home run in 11 at-bats since rejoining the Dodgers on Monday.

Earlier Friday, the Dodgers placed left-hander Ted Lilly on the 15-day DL with a strain in his right rib cage. Lilly (0-1, 5.63 ERA) underwent MRI exams on his neck and rib cage Monday and received an injection in the rib cage. He lasted only three innings in Monday's home loss to the Rockies, allowing five runs, four earned, and eight hits.

Also, first baseman and cleanup hitter Adrian Gonzalez was a late scratch Friday because of neck pain. He collided with an umpire on Wednesday.

Information from The Associated Press was used in this report.