Interleague play will feature the National League East, with three home games against the New York Mets (July 21-23), two games against the Atlanta Braves (August 5-6), and three against the Washington Nationals (August 29-31). The Mariners road trips to NL parks include Miami, Atlanta and Philadelphia. And just like this season, the M's will play a four game series against San Diego, splitting 2 games in each stadium.
The New York Yankees and Boston Red Sox make trips to Safeco Field in June with three games each (Yankees, June 10-12, Red Sox, June 23-25).
The schedule and start times will not be finalized until January 2014.
For More Information:
Tentative 2014 Seattle Mariners schedule