Knizner signed a minor-league contract with the Nationals on Friday and received an invitation to spring training, Andrew Golden of The Washington Post reports.

The Nationals signed Cordero to a minor-league contract Wednesday that includes an invitation to spring training, Aram Leighton of Just Baseball reports.

The Nationals outrighted Adon (biceps) to Triple-a Rochester on Wednesday, Mark Zuckerman of MASNSports.com reports.

The Nationals designated Willingham for assignment Saturday, Bobby Blanco of MASNSports.com reports.

Lopez (groin) signed a one-year, $3 million contract with the Nationals on Saturday, Jon Heyman of the New York Post reports.

Gray agreed to a one-year, $1.35 million contract with the Nationals on Thursday to avoid arbitration, Andrew Golden of The Washington Post reports.

The Nationals and Gore avoided arbitration by agreeing to a one-year contract Thursday, Mark Zuckerman of MASNSports.com reports.

The Nationals and Law avoided arbitration by agreeing to a one-year, $2.75 million contract Thursday, Andrew Golden of The Washington Post reports.

The Nationals and Adams avoided arbitration by agreeing to a one-year, $850,000 contract Thursday, Andrew Golden of The Washington Post reports.

The Nationals designated Adon (biceps) for assignment Wednesday, Bobby Blanco of MASNSports.com reports.

The Nationals signed Rosario to a one-year, $2 million contract.

The Nationals have agreed to terms with Williams on a two-year, $14 million contract, Stephen J. Nesbitt of The Athletic reports.

The Nationals acquired Lowe from the Rangers on Sunday, Jeff Passan of ESPN.com reports.

Soroka agreed to terms on a one-year, $9 million contract with the Nationals on Thursday, Mark Feinsand of MLB.com reports.

The Nationals signed De La Cruz to a minor-league contract Wednesday, Andrew Golden of The Washington Post reports.

The Nationals signed Weigel to a minor-league contract Dec. 6.

The Nationals signed Pilkington on Thursday to a minor-league contract that includes an invitation to spring training, Bobby Blanco of MASNSports.com reports.

The Nationals selected Reifert with the fifth pick in the Rule 5 draft Wednesday, JJ Cooper of Baseball America reports.

The Nationals selected Lara's contract from Double-A Harrisburg on Tuesday, Mark Zuckerman of MASNSports.com reports.

The Nationals selected Hassell's contract from Triple-A Rochester on Tuesday, Mark Zuckerman of MASNSports.com reports.

The Nationals invited Helvey to participate in spring training Saturday, Bob Nightengale of USA Today reports.

Garcia went 2-for-5 with a solo home run and an additional RBI in Sunday's loss to the Phillies.

Irvin (10-14) took the loss Sunday against the Phillies, allowing six earned runs on five hits and three walks in 4.1 innings. He struck out three.

Washington optioned Herz to the Florida Complex League Nationals on Friday, Bobby Blanco of MASNSports.com reports.

The Nationals recalled Rutledge on Friday, Bobby Blanco of MASNSports.com reports.