Nationals' Mason Thompson: Activated from IL

Thompson (biceps) is back with the Nationals and will be activated from the 60-day injured list Friday, Matt Weyrich of NBC Sports Washington reports.

Thompson will rejoin the team ahead of their series with the Marlins, making his return from a biceps injury that has sidelined him since April 10. The reliever has pitched one scoreless inning this season, walking two batters while striking out three. He'll initially operate in low-leverage situations.