The Boston Red Sox have sent Yoenis Cespedes and two players to Detroit for pitcher Rick Porcello and a minor leaguer, according to NBC Sports.
Right-handed pitching prospect Alex Wilson will go to Detroit as part of the trade.
The Red Sox are also awaiting final confirmation on a deal that would land them pitcher Wade Miley from the Diamondbacks.
ESPN's Buster Olney reports that free agent pitcher Justin Masterson has also agreed to sign with the Red Sox.
The moves come after the Red Sox lost out on former pitcher Jon Lester when he agreed to a $155 million, six-year contract with the Chicago Cubs earlier this week.