The Seattle Mariners have acquired left-handed relief pitcher Caleb Ferguson in a trade with the Pittsburgh Pirates, according to multiple sources. Ken Rosenthal of The Athletic and Adam Jude of The Seattle Times had it first,

The Seattle Mariners acquired left-handed reliever Caleb Ferguson from the Pittsburgh Pirates on Wednesday afternoon, bolstering their bullpen ahead of Thursday’s MLB trade deadline.

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