Manager Dave Martinez announced Friday that Castillo has opted out of the 2020 season, Jesse Dougherty of The Washington Post reports.

EDGE Analysis

Castillo is the third Nationals player to elect to sit out, joining Ryan Zimmerman and Joe Ross. Castillo was a non-roster invitee but had a decent chance of making the expanded Opening Day roster as the team's third catcher before choosing to forgo the the season.