Sipp (oblique) will make a minor-league rehab appearance Saturday at High-A Potomac, Sam Fortier of The Washington Post reports.

EDGE Analysis

Sipp was eligible to be activated off the 10-day injured list Friday but will need at least a few more days before rejoining the Nationals. The 35-year-old will be re-evaluated following Saturday's outing, so he could return to the majors soon if all goes well.