Jarrod Saltalamacchia placed on DL

BOSTON -- It took Jarrod Saltalamacchia only a week on the Red Sox roster to become part of a trend: Saltalamacchia was placed on the 15-day disabled list with what manager Terry Francona called an infection in his lower right leg.

The switch-hitting catcher, recalled from Pawtucket on Aug. 11 after his July 31 trade from Texas, is in Massachusetts General Hospital, undergoing tests to determine the cause of the infection, Francona said. Among the possible causes being tested is staph infection. Saltalamacchia is on intravenous fluids and antibiotics, the manager said.

Saltalamacchia, 25, originally underwent testing Wednesday but returned to the ballpark and made himself available for that night's game, Francona said. He did not play. He has not played since Sunday, so the Sox will place him on the DL retroactive to Aug. 16.

To take Saltalamacchia's place on the roster, the Sox recalled catcher Dusty Brown from Pawtucket. Backup catcher Kevin Cash, who was placed on the DL with a mildly strained hamstring on Aug. 11, is not eligible to return until Aug. 27, when the Sox open a three-game series in St. Petersburg, Fla., against the Rays.

Saltalamacchia "does not have even the remotest idea" of how he may have developed the infection, Francona said. "He doesn't remember hitting it, cutting it.''

Saltalamacchia becomes the ninth player currently on the DL for the Red Sox, and the 19th overall.

Gordon Edes is ESPNBoston.com's Red Sox reporter. He has covered the Red Sox for 12 years and has reported on baseball for 25 years.