The injuries are starting to pile up for the San Francisco Giants.

Reliever Sergio Romo, who was sent home for tests after Wednesday night's loss to the Rockies in Colorado, is headed to the disabled list with a flexor strain near his right elbow. Romo has had a history of elbow inflammation and was limited in spring training because the elbow, according to Giants manager Bruce Bochy, was "a little cranky." On Thursday, Bochy said that it doesn't appear Romo will need surgery.

The team is hoping starting shortstop Brandon Crawford's hip flexor injury on Thursday is a shorter-term issue.

Crawford left in the seventh inning of another loss to the Rockies. He was replaced by Ehire Adrianza, who lasted only an inning himself because he fouled a ball off his left foot.

Starting second baseman Joe Panik didn't start Thursday's game because of a sore hip, but he came in as a defensive replacement late in the game.

There was some good news for the Giants, who got catcher Buster Posey back after he missed the first two games of the Colorado series while recovering from a foul tip he took off his right instep Sunday.

The Associated Press contributed to this report.