Swisher had to leave Tuesday night's 10-3 exhibition win over the Pirates following his third-inning at-bat, when he grimaced running out a ground ball and felt tightness in his right groin. He suffered a similar injury last week.
"I feel better today," Swisher said. "Hopefully, we'll just take a few more days and knock this out. I'd rather be missing games now than during the season."
Swisher said that the tightness in that area may be a signal that he needs to change certain parts of his weight-room regimen. He trained differently this winter, working out with football players in Westlake, Calif., in an attempt to change his body composition.
I've never been as strong as I am now," Swisher said. "Now, it's about finding a balance that works for me."
Yankees manager Joe Girardi said that he is no hurry to get Swisher back into the lineup, wanting to make sure that the switch-hitter is prepared for Opening Day.
"I saw him early this morning, and he said he was OK," Girardi said. "We'll just take it day by day and decide when we're going to get him back in there. There's no rush. I think Swish is in a pretty good place. If it takes a few days, it takes a few days."