Shinnosuke Ogasawara News: Making big-league debut Sunday

Ogasawara (oblique) will make his major-league debut Sunday against the Red Sox, Mark Zuckerman of MASNSports.com reports.

Ogasawara threw four innings in his most recent rehab start at High-A and is listed as the starter Sunday. Ogasawara, a 27-year-old lefty from Japan, signed a two-year, $3.5 million deal with the Nationals this year and has a 4.80 ERA, 1.33 WHIP and 12:4 K:BB in 15 innings across three starts at Triple-A.