The Pittsburgh Pirates made many moves ahead of the MLB trade deadline, but they also didn't move one of their best pitchers. Right-handed starting pitcher Mitch Keller is still with the Pirates following the trade deadline on July 31 and will remain with them the rest of the 2025 season.

Several players from the Pittsburgh Pirates were moved during Major League Baseball's trade deadline on July 31. Numerous players, including one of the team's most popular players, were traded away in a hectic day.

With the Yankees needing help in the bullpen, the team will reportedly get David Bednar in a trade with the Pirates before the 2025 deadline.

The relief market ahead of Thursday's trade deadline has the Toronto Blue Jays' front office eyes set on that. Relievers like Phil Maton and Danny Coulombe are emerging as logical fits. According to Jon Morosi of MLB Network,

The Pittsburgh Pirates have traded left-handed reliever Caleb Ferguson to the Seattle Mariners. The deal was first reported by MLB.com’s Mark Feinsand and others before being announced by the Pirates on Wednesday night. Pittsburgh acquired right-handed pitching prospect Jeter Martinez in a one-for-one deadline deal.

The Seattle Mariners have agreed to acquire left-handed reliever Caleb Ferguson from the Pittsburgh Pirates. That's according to a person familiar with the deal who spoke to The Associated Press