Duffy was held out of Sunday's lineup due to a bit of hamstring tightness, John Shea of the San Francisco Chronicle reports.

EDGE Analysis

What was originally thought to be a routine day off turned out to be injury-related, as Duffy will relinquish his regular third base duties in hopes of giving the hamstring the rest it needs. With a team day off scheduled for Monday, the timing seemed right for getting Duffy a bit of a break. Consider him day-to-day for the time being.