Leiter (hip) will undergo surgery Tuesday, Martin Gallegos of MLB.com reports.
Leiter landed on the 15-day injured list this past Tuesday due to right hip impingement. The injury is severe enough for him to require surgery, though it's unclear whether the procedure will sideline the veteran right-hander for the rest of the season. If it's a season-ending surgery, then Leiter will end the year with a 4.28 ERA, 1.31 WHIP, five holds, four saves (in six chances) across 33.2 innings.