Free agent right-hander Merrill Kelly, after being dealt by the Diamondbacks to the Texas Rangers at the trade deadline last season, is returning to Arizona on a two-year, $40 million deal, sources confirmed to ESPN amid multiple media reports.

Former MLB GM and The Athletic writer Jim Bowden criticized the Detroit Tigers for their part in Tarik Skubal contract negotiations at arbitration.

Red Sox trade for Cardinals 1B Willson Contreras Trade details: Red Sox receive Contreras and $8 million to cover $41 million remaining on his contract; Cardinals receive RHP Hunter Dobbins, RHP Yhoiker Fajardo and RHP Blake Aita

The Kansas City Royals are moving the majority of their outfield fences in by 10 feet, according to ESPN's Jeff Passan.

The St. Louis Cardinals sent Nolan Arenado to Arizona, along with a hefty chunk of cash. How did both sides do in the deal?

After two months of will-they-or-won't-they, the Miami Marlins moved one of their top starting pitchers. Was it going to be Sandy Alcantara or Edward Cabrera? T

Arenado batted. .237 with 12 homers and 52 RBIs last season. He has two years remaining on his contract worth $42 million, with salaries of $27 million this year and $15 million in 2027. The Cardinals will be sending Arizona $22 million to offset this year's salary and $9 million to offset next year's pay.

MLB commissioner Rob Manfred's recent comments on a salary cap system prompted a strong response from baseball's union.

The Boston Red Sox had been pushing this offseason to re-sign infielder Alex Bregman. That effort failed, as Bregman signed a free agent deal with the Chicago Cubs on Saturday. Without Bregman on the roster, it appears Boston may be facing a dire situation.