Racing PositionsNationals great Zimmerman retires from MLB3M'This year opened my eyes': MLB players who opted out of 2020 season return with new purpose1YAlden GonzalezNats' Zimmerman 'nowhere close' to retirement1YNats' Zimmerman says this year might not be last1YNationals, Zimmerman reuniting on 1-year deal1YNats GM won't rule out reunion with Zimmerman1YCatcher Castillo becomes third Nat to opt out2YNats' Zimmerman won't play in '20, citing family2YRanking MLB stars it would be most shocking to see in a new uniform2YBradford DoolittleSource: Zimmerman, Nationals agree on deal2Y