If there's one thing the Seattle Mariners have become known for over the past few years, it's the quality of their starting pitching. Through the ups and downs of disappointing bats and bullpen pieces, the rotation has remained a bedrock upon which the team has depended for its regular season success.
Seattle's starters haven't been quite as dominant, combining for a 3.93 ERA (14th in MLB) so far this year, but the majority of trade deadline rumors have revolved around upgrading the lineup. While there is plenty of available pitching talent up for grabs this year, the Mariners could already have the arm they need on their roster.