Drafted in the 7th round (224th overall) by the New York Yankees in 2013 (signed for $100,000).
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Rumbelow has worked as a middle reliever for Louisiana State for three seasons, with varying degrees of success. A 6-foot, 190-pounder, he's a potential first 10 rounds pick despite just 64 college innings in three seasons because at times he flashes a quick arm with 94-95 mph heat. He also performed well last summer in the Cape Cod League (43 SO in 26 IP), which boosts his draft stock. His top secondary pitch is a curveball that is inconsistent but at times shows power and comes out of the same release point as his fastball.
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When the Yankees needed to clear space on their 40-man roster to protect new players in advance of the Rule 5 draft after the 2017 season, they traded Rumbelow to the Mariners for pitching prospects Juan Then and J.P. Sears. Rumbelow made his major league debut in 2015, two years to the day after signing with the Yankees for $100,000 as a seventh-round pick out of Louisiana State. After missing virtually all of 2016 after having Tommy John surgery, Rumbelow returned in 2017 and recorded 45 strikeouts and 11 walks in 40.1 innings split between Double-A Trenton and Triple-A Scranton/Wilkes-Barre. He has a three-pitch mix consisting of a 92-94 mph four-seam fastball with armside run that touched 98 prior to surgery, a mid-80s changeup and an 81-84 mph solid-average curveball he lands for strikes. He repeats his high three-quarters to overhand delivery with a long, deep arm action. The Mariners paid a relatively high price in prospect talent for Rumbelow, so he'll get every opportunity to earn a job in the Seattle bullpen in spring training.
Draft Prospects
Rumbelow has worked as a middle reliever for Louisiana State for three seasons, with varying degrees of success. A 6-foot, 190-pounder, he's a potential first 10 rounds pick despite just 64 college innings in three seasons because at times he flashes a quick arm with 94-95 mph heat. He also performed well last summer in the Cape Cod League (43 SO in 26 IP), which boosts his draft stock. His top secondary pitch is a curveball that is inconsistent but at times shows power and comes out of the same release point as his fastball.
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