ST. PETERSBURG, Fla. -- The Boston Red Sox placed right fielder ShaneVictorino on the 15-day disabled list for the second time this season.

Both times it's been because of a strained right hamstring. He was sidelined from the start of the season until he was activated April 24. Outfielder DanielNava was recalled from Triple-A Pawtucket.

Also, designated hitter DavidOrtiz and first baseman MikeNapoli were not listed in Saturday's lineup because of injuries.

The flurry of activity took place before the Red Sox played Tampa Bay, with Boston trying to end an eight-game losing streak.

Manager John Farrell said Ortiz has a calf injury. Napoli is still feeling the flu-like symptoms that sidelined him Wednesday and Thursday in addition to hamstring, calf and finger issues.

"We're beat up," Farrell said.

Saturday was a planned day off for Ortiz to deal with his injury.

"This is what his situation called for," Farrell said.

Napoli could miss a few days.

"I can't say this is a one-day thing," Farrell said. "It might be more days needed than that, and we're hopeful to avoid a down time on the DL as well with him."

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Victorino heads to disabled list again for Red Sox