Elder will start Wednesday's game against the Nationals, Mark Bowman of MLB.com reports.
Spencer Strider's oblique is bothering him, so he will be pushed back a few days and Elder will step into the rotation Wednesday in order to allow Max Fried to line up against the Phillies on Thursday. Elder dazzled in his last two MLB starts, striking out 16 and allowing just one earned run in 13 total innings.