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Rays acquire reliever Dan Jennings from White Sox

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The White Sox have traded multiple relievers recently. They just traded another, sending lefty Dan Jennings to the Rays for first baseman Casey Gillaspie.

Jennings has a 3.45 ERA and a 38/19 K/BB ratio in 44.1 innings. He’ll likely serve as a setup man with Tampa Bay. He’s more than a rental, as he’s under team control for two more years.

Gillaspie, 24, is hitting .227/.296/.357 with nine home runs in 395 plate appearances at Triple-A. He hit much better in 2016 at Triple-A, however, and made it on some top-100 prospects lists. What the White Sox’ plans for him are with Jose Abreu around, however, are unclear.

Mariners acquire Nick Rumbelow from Yankees

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The Mariners acquired Yankees’ right-hander Nick Rumbelow in exchange for minor league righty Juan Then and left-hander JP Sears, per an official announcement on Saturday. Rumbelow made 17 appearances for the Yankees in 2015 before undergoing Tommy John surgery and could provide some bullpen depth for the Mariners in 2018.

The 26-year-old right-hander spent the majority of his 2017 season in Triple-A Scranton/Wilkes-Barre, where he delivered an 0.62 ERA, 2.5 BB/9 and 9.3 SO/9 over 29 innings. The Yankees didn’t rush Rumbelow into a full workload after he missed the 2016 season recovering from Tommy John, but he didn’t appear to have any significant setbacks with his health or performance and should be ready to compete for a role next spring.

Sears, 21, was ranked 21st in the Mariners’ organization by MLB Pipeline. He was drafted in the 11th round of the 2017 draft and features a deceptive, low-velocity fastball that he can throw for strikes to either side of the plate. In his first year of pro ball, he split 17 games between Short-Season A Everett and Single-A Clinton, turning in an 0.65 ERA, 3.9 BB/9 and 16.6 SO/9 across two levels.

Then, 17, also completed his first year of pro ball after signing with the Mariners as a free agent. He went 2-2 in 13 games of rookie ball, pitching to a 2.64 ERA, 2.2 BB/9 and 8.2 SO/9 in 61 1/3 innings. Neither Sears nor Then will take the mound for the Yankees anytime soon, and offloading Rumbelow to the Mariners should clear up some room on New York’s 40-man roster as they prepare for the upcoming Rule 5 Draft.