FOX Sports MLB reporters Rowan Kavner and Deesha Thosar will be grading the biggest trades in the league through the July 31 trade deadline. Here's how every team has done so far: Who else is involved: The Twins received pitcher Mick Abel and catcher Eduardo Tait.

The Arizona Diamondbacks traded slugging third baseman Eugenio Suárez to the Seattle Mariners on Wednesday night, according to ESPN's Jeff Passan. In return, the Diamondbacks will receive first baseman Tyler Locklear and a pair of pitching prospects, according to MLB.com's Daniel Kramer.

If the Red Sox want to add a top talent before Thursday's trade deadline, Boston might have to give up a top prospect or two.