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A front office stroke of genius has quickly turned into a move viewed with apathy by the Twins fan base. When the Twins signed Jorge Polanco to a five-year, $25 million extension prior to the 2019 season, Polanco’s subsequent appearance as the starting SS for the AL All Star Team had Twins fandom in raptures. Since then, Polanco has regressed significantly at the plate, with no struggle more evident than the switch hitters inability to hit right handed pitchers batting left handed.
Let’s rewind to a happier time. It’s 2019 and Polanco has made his first All Star team. Polanco, fresh off a team friendly, front loaded extension, has managed a searing 129 wRC+ and .367 wOBA in the first half. As his name is announced over the PA system while playing an 18 inning game against the Tampa Bay Rays, a surreal grin spreads unstoppably across his face. The Twins had found a top of the order hitter for the next five years, one who had just beaten out Gleybar Torres and Carlos Correa for an All-Star appearance.
Fast forward to 2021 and Polanco is in the doldrums. Polanco has plateaued, then regressed, his progression hindered by multiple ankle surgeries. In a young 2021 season, Polanco is worth -0.2 fWAR and has amassed a 44 wRC+, making him about 65% worse than an average MLB hitter. Particularly of note since his ankles began to trouble him is his performance from the left side of the plate. It’s time to question whether Polanco has any business switch hitting.
2019 was an outlying year for Polanco as a left handed hitter. 16 of his 22 home runs came from the left side of the plate, in addition to a .306 average and 133 wRC+. 2020 and the beginning of 2021 have been a spiral in the wrong direction. Over that span, Polanco has seen his average drop .136 points, his isolated power evaporate, and his ground ball rate from the left side increase close to 25%. There are too many concerning metrics about Polanco’s performance as a left handed hitter to simply explain away.
Polanco’s penchant for ground balls when batting left handed is a severe detriment to the rest of his offensive game. In 2019, his BABIP as a left handed hitter was .334, followed by .264 in 2020, and .200 so far in 2021. All that adds up to a 33 wRC+ left handed, compared to 95 wRC+ as a right handed hitter since the beginning of 2020.
It’s both notable and noticeable that Polanco’s left handed swing looks awkward. Gone is the swaggy, confident look of a hitter able to spray the ball to all fields. Polanco now spins out of his left handed swing, no longer getting into the base of his core and his legs, a result which usually results in a ground ball to the pull side.
Polanco’s transition to second base will advantage the Twins defensively long term. In Andrelton Simmons, Minnesota has, at least temporarily, an elite defensive shortstop, whose range, arm and defensive savvy no analytically laden positioning can outmaneuver. Offensively, the bottom half of the Twins order has been completely lost. While the lineup without Kepler has been short of effective left handed bats, Polanco from the left side is as good as a free out so far in 2021. Until he gets back on track offensively, the Twins second baseman has no business switch hitting.
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