Jason Frasor and the Royals have agreed to a one-year contract with a 2016 mutual option that guarantees the reliever $1.8 million, according to an ESPN.com report on Friday.

The 37-year-old right-hander was acquired from Texas in July and went 3-0 with a 1.53 ERA in 23 games for Kansas City.

The D-Backs and Cuban slugger Yasmany Tomas have agreed to a six-year contract worth $68.5M, according to a report by MLB.com.

The report, which cites industry sources, states that the deal is believed to include an opt-out clause after four years.

Tomas, who reportedly turned 24 earlier this month, is a corner outfielder who has spent parts of the past seven years playing for the Havana Industriales. He batted .375 for Cuba with two homers and five RBIs in last year's World Baseball Classic.

The Boston Red Sox have finalized their contract agreement with Pablo Sandoval.

Sandoval's five-year deal is worth $95 million and includes a sixth-year club option worth $17 million, with a $5 million buyout, according to a source.

Sandoval is scheduled to be introduced Tuesday at a news conference at Fenway Park.

The Red Sox are finalizing a deal with free-agent infielder Hanley Ramirez, and it is expected to be in the range of five years and $90M, FoxSports.com reported Sunday.

Ramirez was set to arrive in Boston on Monday to finalize terms of the deal, according to the report. 

Multiple outlets earlier reported it was unclear whether the club was planning to sign Ramirez as a third base consolation prize, should the Pablo Sandoval deal fall through, or in addition to a deal with the Giants' star. 

The White Sox have agreed to a two-year, $25 million deal with Adam LaRoche on Friday, sources confirmed to ESPN.

USA Today earlier reported the deal, which the White Sox have yet to confirm.

Free agent Billy Butler, 28, has agreed to a three-year, $30M deal with the A's, sources told ESPN The Magazine's Buster Olney.

The Royals previously paid Butler a $1M buyout rather than exercise their $12.5M option on his contract for the 2015 season, making him a free agent.

The Tigers finalized a $68 million, four-year deal with Victor Martinez on Friday, keeping the slugging designated hitter in the middle of their lineup after he finished second in the AL MVP race this year.

Martinez hit .335 with 32 home runs and 103 RBIs, helping Detroit to its fourth straight AL Central title.