The Nationals are "definitely shopping Michael Morse a little bit," according to an American League executive.

After years of trying, Washington finally acquired Denard Span in a trade with Minnesota on Thursday.

They could deal Morse, clearing the way to re-sign Adam LaRoche as well.

In need of starters, the Angels have acquired Tommy Hanson from the Braves in exchange for Jordan Walden.

Hanson is 45-32 with a 3.61 ERA in four seasons with the Braves.

He is expected to earn about $4 million next season as a first-year arbitration-eligible player.

Walden was the primary closer for the Angels in 2011, but battled a shoulder injury in 2012 and pitched primarily in middle relief.

The White Sox are exploring the addition of a starting pitcher, according to a source.

Adding a pitcher would allow Chicago to explore the possibility of trading Gavin Floyd for what could be a decent haul.

The Royals are looking for a top-of-the-rotation starter and have checked on the availability of James Shields, Jon Lester and R.A. Dickey.

Kansas City has a number of young players that would interest the Rays, Red Sox and Mets, respectively, but they aren't willing to part with young catcher Salvador Perez or top outfield prospect Wil Myers.

"Our rotation is going to better, but we're still looking for the opportunity to improve on what we've done," Dayton Moore said.

The Royals have already added Ervin Santana and Jeremy Guthrie to their rotation this winter.

It was reported on Wednesday that the Phillies and Astros were nearing a trade that would send Wilson Lopez to Philadelphia, but the reliever appears to be staying put.

The trade "hit a roadblock and is unlikely to happen" because something troublesome popped up in Lopez's physical exam.

The Astros and Phillies are finalizing a trade that would send reliever Wilton Lopez to Philadelphia in exchange for some minor leaguers, according to a report.

Jeff Luhnow said Wednesday there's "nothing to report" about the Lopez deal.

Lopez, who's entering his first year of arbitration, went 6-3 with a 2.17 earned-run average in 64 appearances during the 2012 season.

The Royals have traded Vin Mazzaro and Clint Robinson to the Pirates for minor league pitchers pitchers Luis Santos and Luis Rico.

Mazzaro was 4-3 with a 5.73 ERA for Kansas City while filling in as a spot starter.

Robinson struck out twice in his first four major league at-bats.

The Rockies aren't shopping Dexter Fowler, but they would listen to offers with a number of contending teams in the market for a center fielder.

Fowler made just $2.35 million last year and is arbitration-eligible for two more years.

The market for Fowler will likely increase once free agents Michael Bourn and B.J. Upton sign with teams, leaving suitors with a hole in their lineup.

To deal Fowler, the Rockies will have to receive pitching as part of the package.

The Red Sox might be targeting a number of players in free agency, but they have put Mike Napoli atop their list.

According to an industry source, Napoli is atop Boston's wish list with players like Nick Swisher assuming "1A" status.

There have been reports that Napoli could make a decision on where he'll play next season before next week's winter meetings, which would be ideal for the Red Sox.

Napoli, who is seeking a four-year deal, has also spoken to the Mariners and Rangers.

The Red Sox have inquired about Joe Mauer in each of the last three months, but the Twins aren't willing to discuss the face of their franchise.

A Minnesota native and the 2009 AL MVP, Mauer enjoyed a bounce-back season in 2012 after playing in just 82 games the year before.

He hit .319/.416/.446 with 10 home runs and 85 RBI.