The market for Scott Kazmir is beginning to take shape, according to a report.

Kazmir, 31, has trimmed his suitors to the Kansas City Royals, Oakland Athletics, St. Louis Cardinals, Washington Nationals and Houston Astros.

However, it doesn't appear as though the left-hander will sign with a club soon.

The Houston Astros would "definitely like to bring in another starter," according to a report.

Houston has interest in Yovani Gallardo and could also be in the mix for Mike Leake.

The Houston Astros, Baltimore Orioles and Kansas City Royals all are interested in signing Yovani Gallardo.

A report suggests that Gallardo could choose from one of those three clubs soon.

Gallardo, who will turn 30 in February, has a 3.66 ERA and has averaged 8.2 strikeouts per nine innings over nine Major League seasons.

The Philies and Astros have finalized their deal involving closer Ken Giles, according to an ESPN.com report on Saturday.

The Astros get the hard-throwing Giles, but the Phillies receive former No. 1 draft pick Mark Appel in the deal. The right-hander had not previously been reported as being in the deal.

The Washington Nationals have shown interest in trading for Aroldis Chapman, according to a source.

The Los Angeles Dodgers haven't completely dropped their pursuit of Chapman, who has had domestic abuse issues surface.

The Cincinnati Reds and Dodgers reportedly came to an agreement on a deal last weekend before Major League Baseball stepped in to investigate Chapman's legal issues.

The Houston Astros also are interested in acquiring Chapman, the source said.

The Houston Astros and reliever Tony Sipp have agreed to a three-year, $18 million deal, according to a source.

Sipp, 32, had a career-best 1.99 ERA in 60 games last season. He was 3-4 with 62 strikeouts in 54¨÷ innings.

The Philadelphia Phillies have agreed to trade Ken Giles to the Houston Astros for four players, according to multiple reports.

Philadelphia will receive pitchers Vincent Velasquez and Brett Oberholtzer, along with a third significant prospect and another player.

Giles, 25, has also had back-to-back seasons with ERAs under 2.00 and has struck out 151 hitters in 115 major league innings.

The Houston Astros and Los Angeles Dodgers are showing interest in acquiring Andrew Miller from the New York Yankees, according to a report.

The Dodgers appeared close to a trade for Aroldis Chapman before domestic violence allegations emerged.

The Houston Astros are fielding interest in a number of their key players, including George Springer, according to a report.

Houston hasn't discussed Springer in any deals, but would be open to moving the young outfielder if the haul is significant enough.

The Astros have heard from other clubs interested in Vince Velasquez and Lance McCullers, Jr. Carlos Gomez has been linked to the Chicago Cubs in rumors as well.

A mystery fourth team is making a "very strong" bid to acquire Jose Fernandez from the Miami Marlins, according to sources.

Other clubs claim the Houston Astros are that team, but nothing has been confirmed.

The Los Angeles Dodgers, Arizona Diamondbacks and New York Yankees are all known to have spoken to the Marlins about Fernandez.

Miami has publicly said they aren't making Fernandez available, while entertaining trade talks.