The Detroit Tigers accomplished another goal during their busy off-season, adding depth to their bullpen with Joba Chamberlain.

Chamberlain and the Tigers agreed to terms on a one-year contract, according to a person familiar with the negotiations. The person spoke on condition of anonymity to The Associated Press on Thursday because the deal hadn't been announced.

The hard-throwing, right-handed reliever was 2-1 with one save in 45 games and a career-high 4.93 ERA last season for the New York Yankees. The converted starter was 23-14 with five saves with a 3.85 ERA in 260 over seven seasons with the Yankees.

Chamberlain will get a fresh start in Detroit in a relatively low-pressure role as a middle reliever.

The Tigers have won the last three AL Central titles and at least one post-season series the previous three years, but they got to the World Series only once and were swept by the San Francisco Giants in 2012. They're hoping they have made all the right moves to boost the franchise's quest to win a World Series for the first time since 1984.

Detroit has a new manager with Brad Ausmus replacing Jim Leyland and will have a lot of new faces in key places on the field.

The Tigers made a blockbuster trade in late November, sending first baseman Prince Fielder to the Texas Rangers for second baseman Ian Kinsler. A couple weeks later, Detroit dealt the known — right-handed starter Doug Fister — for lesser-known players in a four-player deal. The Tigers also signed closer Joe Nathan and speedy outfielder Rajai Davis within the last week, filling two more voids, and let shortstop Jhonny Peralta leave as a free agent.

Detroit president and general manager Dave Dombrowski proved he wasn't done at the winter meetings, agreeing to give a player an opportunity to pitch toward his vast potential.

Napoli stays in Boston

The Boston Red Sox finalized their two-year deal with first baseman Mike Napoli on Thursday, bringing back one of the biggest hitters from the World Series team..

Napoli will earn $32 million through 2015. The terms were agreed to last week, when Napoli tweeted, "The beard is coming back to Boston!!! Couldn't be happier!!"

Napoli's bushy beard made him one of the most visible stars of the Red Sox, but it was his bat that helped them win the World Series. He drove in seven runs in the post-season as the Red Sox beat Tampa Bay, Detroit and St. Louis.

Napoli hit .259 with 23 home runs and 92 RBIs this year in his first season with the Red Sox.

To make room for Napoli on the 40-man roster, outfielder Alex Castellanos was designated for assignment.

Nate McLouth signs with Nationals

Outfielder Nate McLouth has passed his physical and signed his two-year contract with the Washington Nationals.

The Nationals on Thursday announced the signing of McLouth, who is part of general manager Mike Rizzo's off-season plan to strengthen the bench.

McLouth was a starter with the Baltimore Orioles this year, but in Washington he'll be the spare outfielder expected to fill in when Bryce Harper, Jayson Werth or Denard Span is injured or takes a day off.

The 32-year-old McLouth has played nine seasons in the majors with Pittsburgh, Atlanta and the Orioles, and was an All-Star and Gold Glove winner in 2008. He hit .258 with 12 home runs and 36 RBIs this year.

To make room on the 40-man roster, the Nationals designated outfielder Corey Brown for assignment.