SEATTLE -- Mariners general manager Jerry Dipoto made two moves to bolster his team's bullpen for the playoff run on Monday, acquiring veteran lefty Zach Duke and cash from the Twins and right-hander Adam Warren from the Yankees.Dipoto sent Minor League prospects Chase De Jong and Ryan Costello to the Twins for Duke, then he sent international slot money (believed to be $1.25 million, according to MLB.com's Mark Feinsand) to the Yankees for Warren. Both players will be free agents at the end of the season.Warren, 30, has a 2.70 ERA in 30 innings over 24 games for the Yankees this year, with 37 strikeouts and 12 walks. The seven-year veteran has about $1 million remaining on his $3.3 million contract this season. 
Duke provides a second left-handed setup man to go with James Pazos, who became the primary southpaw after the club released veteran Marc Rzepczynski in June."Zach adds both experience and left-handed depth to our bullpen," Dipoto said. "We believe he can be an importance piece for us over the balance of the season."Duke is earning $2.15 million this season. The Twins sent $75,000 to the Mariners to pay down part of Duke's remaining salary, a source tells Feinsand, and Seattle will pay the rest, which is about $600,000.Dipoto is looking to fortify his pitching staff prior to Tuesday's 1 p.m. PT non-waiver Trade Deadline, and he had previously added right-hander Sam Tuivailala from the Cardinals on Friday.The 35-year-old Duke is 3-4 with a 3.62 ERA and 12 holds in 37 1/3 innings over 45 games with the Twins this year, with left-handed hitters batting .237 with 16 strikeouts in 59 at-bats. He's one of just three American League pitchers who has appeared in 30-plus games without allowing a home run.De Jong was the Mariners' No. 28-ranked prospect by MLB Pipeline, and he was 0-3 with a 6.35 ERA in seven games, including four starts, for Seattle last year. The 24-year-old has spent all of this year with Double-A Arkansas, going 5-5 with a 3.80 ERA in 21 starts and earning a spot on the Texas League Midseason All-Star team.Costello, 22, has hit .266 with 16 home runs and 70 RBIs in 101 games with Class A Clinton this year. He was a 31st-round Draft pick in 2017 out of Central Connecticut State.
Duke provides a second left-handed setup man to go with James Pazos, who became the primary southpaw after the club released veteran Marc Rzepczynski in June."Zach adds both experience and left-handed depth to our bullpen," Dipoto said. "We believe he can be an importance piece for us over the balance of the season."Duke is earning $2.15 million this season. The Twins sent $75,000 to the Mariners to pay down part of Duke's remaining salary, a source tells Feinsand, and Seattle will pay the rest, which is about $600,000.Dipoto is looking to fortify his pitching staff prior to Tuesday's 1 p.m. PT non-waiver Trade Deadline, and he had previously added right-hander Sam Tuivailala from the Cardinals on Friday.The 35-year-old Duke is 3-4 with a 3.62 ERA and 12 holds in 37 1/3 innings over 45 games with the Twins this year, with left-handed hitters batting .237 with 16 strikeouts in 59 at-bats. He's one of just three American League pitchers who has appeared in 30-plus games without allowing a home run.De Jong was the Mariners' No. 28-ranked prospect by MLB Pipeline, and he was 0-3 with a 6.35 ERA in seven games, including four starts, for Seattle last year. The 24-year-old has spent all of this year with Double-A Arkansas, going 5-5 with a 3.80 ERA in 21 starts and earning a spot on the Texas League Midseason All-Star team.Costello, 22, has hit .266 with 16 home runs and 70 RBIs in 101 games with Class A Clinton this year. He was a 31st-round Draft pick in 2017 out of Central Connecticut State.
Greg Johns/MLB.com
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