Solis (elbow) threw a 40-pitch bullpen session in Florida on Wednesday, Jorge Castillo of The Washington Post reports.
No news has emerged on how Solis felt following the bullpen session, but this marks a big step in his recovery process. The southpaw hasn't made much progress since being shut down in mid April with an inflamed nerve in his left elbow, but it appears he may be finally turning a corner in his recovery. He'll continue to ramp up his throwing program before he heads out on a rehab assignment, at which point there should be a clearer timetable for his return to the Nationals' bullpen.