Smith-Shawver will start Tuesday in Game 1 of the National League Wild Card Series against the Padres, David O'Brien of The Athletic reports.
Atlanta recalled Smith-Shawver from Triple-A Gwinnett on Tuesday.
Atlanta optioned Smith-Shawver to Triple-A Gwinnett on Wednesday.
Atlanta plans to activate Smith-Shawver (oblique) from the 15-day injured list prior to Tuesday's game in Arizona, Justin Toscano of The Atlanta Journal-Constitution reports.
Smith-Shawver (oblique) will begin a rehab assignment with High-A Rome on Wednesday.
Smith-Shawver was diagnosed with a Grade 2 left oblique strain Friday, Justin Toscano of The Atlanta Journal-Constitution reports.
Atlanta placed Smith-Shawver on the 15-day injured list Friday with a strained left oblique.
Atlanta recalled Smith-Shawver from Triple-A Gwinnett on Thursday.
Smith-Shawver topped 99 mph with three fastballs during his last start for Triple-A Gwinnett on Wednesday, Mark Bowman of MLB.com reports.
Atlanta optioned Smith-Shawver to Triple-A Gwinnett on Monday.