The Seattle Mariners option Jackson Kowar after activating Caleb Ferguson following a trade with the Yankees ahead of the deadline.

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 Pirates are trading left-handed reliever Caleb Ferguson to the Mariners. Read more about the move at MLB Trade Rumors.