The Washington Nationals have agreed to sign catcher Matt Wieters on Tuesday. 

Wieters and the Nationals came to terms on a two-year, $21 million contract that includes an opt-out after this season. Wieters will earn $10.5 million each year, effectively making it a one-year deal if he decides to opt-out. 

The contract includes deferrals, so $5 million of his earnings will not come until 2021. 

The Los Angeles Angels announced the acquisition of infielder Danny Espinosa from the Washington Nationals Saturday evening. Baseball America's Josh Norris first reported the trade. 

In exchange for Espinosa, the Nationals received two prospects: right-handed pitchers Kyle McGowin and Austin Adams. 

Espinosa was reportedly unhappy with the Nationals following their trade for  center fielder Adam Eaton. The deal effectively moved Trea Turner, who was the Nationals' primary center fielder for the back half of the 2016 season, to shortstop and Espinosa to the bench. 

The Washington Nationals acquired outfielder Adam Eaton from the Chicago White Sox in a huge trade on Wednesday, as first reported by MLB.com's Scott Merkin. 

In exchange for Eaton, the White Sox received three highly touted prospects: right-handed pitchers Lucas Giolito, Reynaldo Lopez and Dane Dunning. 

Eaton is obviously a big get for the Nationals. He comes with five years of team control, can man center field full-time and is a good bat to have at the top of the lineup. 

The San Francisco Giants have signed right-handed closing pitcher Mark Melancon on Monday, they officially announced. ESPN's Buster Olney was the first to report that Melancon and the Giants agreed to terms.

According to Joel Sherman of the New York Post, Melancon's deal is for four years and $62 million. According to Jeff Passan of Yahoo Sports, Melancon can opt out of his contract following the second season.

In the contract, Melancon will earn $4 million in 2017, $10 million in 2018 and $14 million in both 2019 and 2020. So, if he decides to opt out, the contract goes form a four-year, $62 million deal to a two-year, $14 million deal in annual salaries. As part of the deal, Melancon will earn a $20 million signing bonus, $12 million of which will be earned up front and the other $8 million that will not be earned until the contract is up.

The Washington Nationals have announced the acquisition of veteran catcher Derek Norris from the San Diego Padres on Friday. 

In exchange for Norris, the Padres received right-handed pitching prospect Pedro Avila. 

The acquisition of Norris represents a low-cost addition for the Nationals at a posititon of need. Wilson Ramos served the 2016 season as starting catcher in D.C., but he tore his ACL and is a free agent this offseason. The Norris trade likely means the Nationals will not be bringing Ramos back, even on a multi-year deal, which would allow them to have him back when healthy.