Nov 21, 2012, 3:32 AM EST
Among those left unprotected by the Nationals were left-hander Danny Rosenbaum, second baseman Jeff Kobernus and outfielder Destin Hood.
The Nationals were more worried about Karns and Davis being plucked away in the draft, which requires the player's new club to keep him on the big-league roster for a full season or else offer him back to his former organization.
Karns, who turns 25 on Sunday, earned organizational pitcher of the year honors after going a combined 11-4 with a 2.17 ERA in 24Read more »
ON THE RADIO
As ESPN-980 AM's Nats Insider, Mark makes daily appearances on the station's various shows. Here's the 2014 schedule (subject to change)...
MON: 12:45 p.m.
TUE: 2:30 p.m.
WED: 4:30 p.m.
THU: 2:30 p.m.
FRI: 1:30 p.m., 5:30 p.m.
SAT: 10:30 a.m.
*All times Eastern. You can also listen to the station on 94.3 FM, 92.7 FM and online at ESPN980.com. Click here for past audio clips.
Follow us on Twitter
- Nationals linked to top free agent Max Scherzer
- Nats add 4 players to 40-man roster, drop pair
- Report: Nationals consider Zimmermann & Fister 'available'
- Nationals need to make 40-man roster decisions
- Zimmermann's gift to Souza for no-hitter catch revealed
- Report: LaRoche has $20M deal on table from Marlins
- Mets set plan for Harvey with Strasburg in mind
- Point/Counterpoint: Will Nats regret Zim's contract?
- Report: Marlins showing strong interest in LaRoche
- Nats minor league coordinator Beasley leaves for Rangers