He was sent to the hospital Sunday
after slamming hard into the right-field wall during a 12-4 loss to the Toronto Blue Jays.
Victorino said Sunday he expected to play in the team's next game -- Tuesday against Tampa – but that was before he discovered how sore he was on Monday.
There was one out and a runner on first in the top of the fourth inning when Blue Jays second baseman Emilio Bonifacio got a hold of a Ryan Dempster offering, sending Victorino racing to the wall. Victorino never slowed up, crashing into the short fence in front of the Toronto bullpen as Bonifacio's drive landed beyond it for a two-run homer.
Victorino immediately crumpled to the ground. After a lengthy delay, during which he was surrounded by teammates and trainers, Victorino surprisingly stayed in the game until the Red Sox made several defensive changes to start the seventh.
"With the way Shane hit the wall, he started to stiffen up as the game went on," manager John Farrell said. "Given what he's been dealing with lower back-wise, we weren't going to take any chances further today."
Victorino missed seven games earlier this season with a lower-back strain. Farrell indicated that Victorino should be ready to play Tuesday, when the Red Sox open a nine-game road trip against Tampa Bay.