Strasburg will get his return start Wednesday night against the Phillies, according to manager Davey Martinez.
Strasburg has been on the shelf since July 22 with a cervical nerve impingement. Fedde has been out since July 5 with right shoulder inflammation.
Fedde will make a minor league rehab start tonight for Double-A Harrisburg. His locker mate to his right, right-hander Joe Ross, joins him in Harrisburg and will get a rehab start Tuesday night.
Fedde sought out advice from Strasburg as they both rehabbed. He has gone 1-3 with a 5.79 ERA in six starts for the Nats. He has recorded 19 strikeouts in 28 innings.
Ross has had three starts so far as he rehabs from Tommy John surgery: Aug. 6, 11 and 16. The first two were with the Rookie-level Gulf Coast League Nationals and the most recent start was for high Single-A Potomac. In that game, Ross tossed 3 2/3 innings, allowing no runs on one hit with two hit batters, one walk and one strikeout. He threw 63 pitches, 39 for strikes.