January 24, 2021 Mitch Keller has only thrown 69-and-a-third big-league innings, and he’s already had a remarkable career. The baseball gods are a big reason why. In his 2019 rookie season, the now-24-year-old Pittsburgh Pirates right-hander had a 7.13 ERA to go with a 3.19 FIP, and this past season he had a 2.91 ERA to go with a 6.75 FIP. Hello, BABIP. In an almost-inexplicable quirk of fate, Keller followed up a .475 BABIP — the highest one-season mark in MLB history — with a .104 BABIP in 2020. No pitcher who threw 20-or-more innings in last year’s pandemic-truncated campaign had a smaller percentage of balls put in play against him fall safely to the turf. This happened with an average exit velocity of 88.5 mph, which was higher than the 87.6 he’d allowed in 2019.