Abreu is out of the lineup for Sunday's game against the Mariners, Chris Cotillo of MassLive.com reports.
It's just the second day off of the season for Abreu, who started the past 56 games in right field. The 26-year-old has a .242/.279/.452 slash line with four doubles, three homers and 12 RBI through 16 contests in June. Nate Eaton is picking up a start in right field Sunday for Boston.