But that conservative plan of attack hasn't paid off so far.
"As he's ramped up activity, it's kind of talking back to him," said Red Sox manager John Farrell. "We'll see what the second opinion has to offer."
With Swihart out of the mix as a short-term possibility in left field, the Red Sox recently called up No. 2 prospect Andrew Benintendi to play that position against right-handers.
It has been a frustrating second Major League season for Swihart, who was optioned back to Triple-A on April 15 before returning on May 20.
Swihart had made a strong transition to left field and was just starting to heat up at the plate before getting his foot stuck under the side wall at Fenway while trying to make a catch against the Blue Jays.
Overall this season, he's hitting .258 in 62 at-bats with the Red Sox.
Ian Browne is a reporter for MLB.com. Read his blog, Brownie Points, and follow him on Twitter @IanMBrowne. This story was not subject to the approval of Major League Baseball or its clubs.