Scott Hairtson (oblique) could be activated Monday. Hairston went 0-for-4 with a strikeout in a rehab game Sunday at Triple-A Syracuse, but he played all nine innings defensively and reported no discomfort. The veteran outfielder has been sidelined since April 6 with a strained left oblique. Steven Souza, Jr. will likely be optioned to the minors to open up a roster spot.