O'Neill (back) is out of the lineup for the second game of Sunday's doubleheader with the Twins, Mac Cerullo of the Boston Herald reports.
The Red Sox will give O'Neill both ends of the twin bill off as he deals with what manager Alex Cora described earlier Sunday as minor back tightness. Jarren Duran will occupy O'Neill's typical spot in left field for the second game of the doubleheader.