Sewald and the Mariners avoided arbitration by agreeing to a one-year, $1.735 million deal Tuesday, Kiley McDaniel of ESPN.com reports.
Sewald broke out in his age-31 season last year, striking out 39.4 percent of opposing batters while posting a 3.06 ERA. Seattle's closer committee, a setup they intend to stick with this season, meant he only picked up 11 saves despite that dominance, which lessened the amount of money he would have received in arbitration.