Arano (shoulder) elected free agency Thursday after passing through waivers unclaimed, Andrew Golden of The Washington Post reports.

Arano will undergo right shoulder surgery later this month, Andrew Golden of The Washington Post reports.

The Nationals placed Arano on the 60-day injured list Thursday with a right shoulder strain, Bobby Blanco of MASNSports.com reports.

Arano (shoulder) is expected to open the season on the Nationals' 60-day injured list, a source tells Jesse Dougherty of The Washington Post.

Arano will be shut down for 10 days due to a right shoulder impingement, Andrew Golden of The Washington Post reports.

Arano agreed to a one-year, $925,000 contract with the Nationals on Friday to avoid arbitration, Andrew Golden of The Washington Post reports.

The Nationals placed Arano on the 15-day injured list Sunday with a right shoulder strain.

Arano (knee) was activated from the injured list Friday, Mark Zuckerman of MASNSports.com reports.

Arano (knee) will begin a rehab assignment at the Nationals' spring training site in West Palm Beach, Fla. this week, Jessica Camerato of MLB.com reports.

Arano (knee) tossed 20 pitches Monday in what Nationals manager Dave Martinez described as a "light" bullpen session, Jesse Dougherty of The Washington Post reports.