The Nationals plan to promote Stubbs from Triple-A Rochester ahead of Friday's game against the Rays, Andrew Golden of The Washington Post reports.
The 28-year-old is on the cusp of his first look in the majors after No. 2 catcher Drew Millas suffered a fractured and dislocated finger Wednesday. Stubbs has a .148/.279/.240 slash line between the Double-A and Triple-A levels this season and isn't likely to see much playing time as the backup to Riley Adams.