The Seattle Mariners and Arizona Diamondbacks have already linked up on one trade this year. There could be another one brewing in the shadows.

Seattle Mariners president of baseball operations Jerry Dipoto said the club plans to be "aggressive" in pursuing a bullpen arm at the trade deadline.

After adding first baseman Josh Naylor, the Mariners are off to a fabulous start at the trade deadline, but Dipoto isn't satisfied, telling MLB Network Radio on Sirius XM that the team will be as aggressive "as anybody" in the next few days to get bullpen help.

After reinforcing the infield with Ryan McMahon and Amed Rosario, the Yankees are seeking a starting pitcher, according to ESPN. They are not eager to trade top prospects George L

Bats aren't the only need for the Seattle Mariners before the July 31 trade deadline. Here are some big-name bullpen arms who could be available.

The first Diamondbacks trade domino has fallen, as first baseman Josh Naylor is heading to the Seattle Mariners.

Mariners hurler Logan Evans talked the team's trade for Josh Naylor, and his friend, Brandyn Garcia, being included in the trade.