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"The Mariners’ power rotation is the biggest part of why they lead the majors in ERA and are second in FIP. Only the Braves and Twins get more swinging strikes. They do it with the fastball; Mariners starters throw the highest percentage of fastballs in MLB (45.1%), and their starters’ fastballs have the highest run value in baseball by a wide margin.
"The Rangers? They like hitting fastballs: sixth in SLG, seventh in wOBA against heaters. There’s your first key to the series: Can the Mariners’ young guns beat the Rangers’ fastball-loving lineup?"