The Mariners now have two remaining arbitration-eligible players in first baseman Justin Smoak and outfielder/first baseman Logan Morrison.
Saunders, 27, hit .236 with 12 home runs and 46 RBIs last year in 132 games while playing all three outfield positions. The Victoria, B.C., native has 31 home runs and 34 stolen bases over the past two seasons and figures to again compete for the starting center-field role this coming year.
Saunders has been with the Mariners his entire career since being selected in the 11th round of the 2004 First-Year Player Draft. He will have two more seasons of arbitation eligibility before becoming a free agent following the 2016 season.
Smoak and Morrison are also first-year arbitation-eligible and will exchange contract figures with the Mariners on Friday if they don't reach their own agreements before then.
Greg Johns is a reporter for MLB.com. Follow him on Twitter @GregJohnsMLB as well as his Mariners Musings blog. This story was not subject to the approval of Major League Baseball or its clubs.