Doolittle (knee) said he expects to join High-A Potomac for a rehab appearance Friday, Jesse Dougherty of The Washington Post reports.

EDGE Analysis

Doolittle completed a 16-pitch, one-inning simulated game Wednesday and feels good physically, but he wants to improve his sharpness before rejoining the Nationals. The veteran left-hander may only require a game or two in the minors, so it shouldn't delay his return to the majors for long.