Mariners acquire lefty reliever from Twins, Kyle Seager heads to paternity list

The Seattle Mariners acquired that left-handed reliever they have been wanting.

Lefty Zach Duke is the newest Mariners bullpen addition after Seattle sent minor league pitcher Chase De Jong and infielder Ryan Costello to the Minnesota Twins on Monday.

It comes on the same day the Mariners made a flurry of roster moves, including activating left-hander James Paxton from the disabled list and adding third baseman Kyle Seager to the paternity list. A player may be on the paternity list for no more than three days.

Duke, 35, is 3-4 this season with 12 holds and a 3.62 ERA in 45 games with the Twins, though he’s limited left-handed hitters to a .237 average (14-for-59) with just two of those hits…