Nats claim Thornton, put Ramos on paternity list

Yankees add LHP Hill, let LHP Thornton go to Nats

Roark struggles as Nationals fall to Orioles 7-3

Orioles hit 2 HRs, rally past Nationals 7-3

Nationals put OF McLouth on DL; recall OF Souza

Tanner Roark: The Nats’ anti-superstar