The Milwaukee Brewers have agreed to sign Francisco Rodriguez to a two-year contract.

It was reported earlier Thursday that Rodriguez had agreed to terms with an undisclosed team.

The St. Louis Cardinals have signed Carlos Villanueva to a Minor League contract.

Villanueva will earn $2 million if he reaches the Major Leagues.

The Texas Rangers have extended Adrian Beltre's contract through the 2016 season.

The extension is actually an amendment of the original contract Beltre signed on Jan. 5, 2011.

In that deal, the first five years and $80 million were guaranteed with an option in 2016 that could have paid Beltre $16 million if he hit specific incentives in plate appearances last year and/or in 2015.

Under the amendment announced Monday, Beltre is guaranteed $16 million this year and $18 million in 2016, according to a report.

Texas could have voided the final year if Beltre failed to reach the incentives.

As Nationals pitchers and catchers went through their first official workout of spring training, the team announced Saturday that it had exercised the 2016 option on manager Matt Williams' contract.

"I'm excited to be part of the organization and the fact that it got picked up," Williams said. "I'm honored to have that done. The organization is fantastic. They've supported all of us since the day I arrived here."

The Red Sox announced Saturday morning that manager John Farrell, who was entering the final guaranteed year of his contract with the team, has been given an extension through the 2017 season, with a club option for 2018.

In essence, the club extended Farrell's contract by two years. The team had held an option on his deal for the 2016 season.

Pedro Alvarez has defeated the Pittsburgh Pirates in salary arbitration.

Alvarez was awarded a $5.75 million salary by Robert Herzog, James Oldham and Dan Brent, who heard arguments on Wednesday. Pittsburgh had argued for $5.25 million.

The second overall pick in 2008, Alvarez made $4.25 million last year.

The Colorado Rockies have defeated Wilin Rosario in salary arbitration.

Rosario was awarded a $2.8 million salary instead of his $3.3 million request on Wednesday.

The Kansas City Royals have avoided arbitration with Eric Hosmer by agreeing to a two-year, $13.9 million deal.

Hosmer gets $5.65 million this season and $8.25 million next season. He will be eligible for arbitration again in 2017. He is not eligible for free agency until 2018.

He was asking for $6.7 million in arbitration, while the Royals were offering $4.6 million.

Former Cy Young Award winner Barry Zito will sign a minor league deal with the A's that includes an invite to major league camp, assistant GM David Forst told the Bay Area News Group, confirming multiple media reports.

Zito will receive a $1 million base salary if he makes Oakland's big league roster, a baseball source confirmed to ESPN.com's Jerry Crasnick.

The Arizona Diamondbacks and Addison Reed have agreed to a one-year, $4.875 million contract.

The deal avoided a salary arbitration hearing that had been scheduled for Friday. Reed can earn $50,000 in performance bonuses: $25,000 each for 55 and 60 games finished.

Reed had 32 saves in 38 chances last year with a 4.25 ERA and 69 strikeouts in 59 1/3 innings. He earned $538,500.