The Nationals released Tyler Walker, according to the team (on Twitter). Washington signed the right-hander to a one-year deal in January and got 35 1/3 inning of 3.57 ball from him in 2010. The 34-year-old posted 7.6 K/9 and 2.0 BB/9, so the Nationals obtained value for their $650K investment.
However, the team shut Walker down in June because of a sore shoulder. He did not pitch after June 19th, so health concerns no doubt contributed to the Nationals' decision to release Walker instead of offering arbitration. The team would have non-tendered him, but today's move gives Walker another month to look for a job.