Nov 21, 2012, 3:32 AM EDT
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 »
NL EAST STANDINGS
FRI: Nats at Mariners, 10:10 p.m.
SAT: Nats at Mariners, 9:10 p.m.
SUN: Nats at Mariners, 4:10 p.m.
MON: Nats at Dodgers, 8:10 p.m.
TUE: Nats at Dodgers, 10:10 p.m.
WED: Nats at Dodgers, 4:10 p.m.
Full season schedule
ON THE RADIO
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.
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