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Can Someone Find Tyler Duffey?


Ted Schwerzler

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The first few seasons of Tyler Duffey in a Minnesota Twins uniform were not good. The former Rice closer had an undefined role and owned a 5.46 ERA across his first 287 innings. Then it happened, he became one of the best relievers in baseball. But, where did he go?

The Twins have long been working to develop their own internal pitching pipeline. Finding relievers is typically an easier venture given the ability to convert failed starters. Taylor Rogers has become one of the best closers and lefties in baseball, but he was joined by the likes of Trevor May and Tyler Duffey. The past two seasons saw Duffey post a 2.31 ERA in more than 80 innings while punching out 12.5 per nine and walking just 2.2 per nine.

Fast forward to 2021.

This season the starting rotation has not been good.and unfortunately neither has the bullpen. Duffey owns a fine 3.63 ERA but that’s backed by a 4.10 FIP and lackluster peripherals including a 7.7 K/9 and 5.0 BB/9. His strikeout rate has dropped from 33% the past two seasons down to a dismal 19%.

Fortunately for Duffey, the stuff hasn’t resulted in more damage. The batted ball profile remains largely unchanged, and he’s not giving up an additional amount of hard contact. His velocity has held steady at 92 mph, which is down from 2019, but not the worrisome mark that appeared in Spring Training.

The largest issue for Duffey is that he’s no longer forcing batters to play into his hands. As a fastball and curveball pitcher, he thrived off setting batters up for a bender they simply couldn’t touch. This season he’s generating just a 27.7% chase rate which is down 13% from 2020, and 5% below his career average. He’s also halved his whiff rate going from 16% a year ago to just 8% this season. The stuff isn’t generating any desire to expand the zone, and isn’t sharp enough to compile swings and misses.

Derek Falvey decided to pull the plug on Jose Berrios being extended by the Minnesota Twins and flipped him before the trade deadline. For a team needing pitching help, that signifies a belief in internal development and a desire to supplement externally. Whether in the rotation or the bullpen, efforts will need to come from holdovers. Duffey will again be relatively cheap in 2022 and enters his final year of team control. If the Minnesota Twins are going to be competitive, they’ll need him to again contribute at a high level in key spots.

Seeing Duffey emerge as an arm that took time to develop but transformed into an incredible asset, it’s been difficult to watch him take such a stark step backwards this season. We’ve seen the ability play at the highest level, and Rocco Baldelli will need an opportunity to rely on that sort of production once again. It may take an offseason of going back to the drawing board, but for both Duffey and the Twins, each party needs things to revert back to where they were.

For more from Off The Baggy, click here. Follow @tlschwerz

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Duffey's been throwing a ton of fastballs right in the middle of the zone this year instead of staying to the sides of the plate like he did in 2020. His curve has expanded up higher and into the middle of the strike zone this year as well.

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It's the same question I asked my baseball buddies yesterday. Duffey counts on hitters chasing his first pitch curve balls which are too far outside. From there it's an uphill battle. His catcher must see it.

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It's the same as for most two-pitch hurlers. If batters aren't forced to respect a breaking pitch that will just cross the strike zone, then they will simply sit on the heater. If he's leaving those fastballs in the middle of the zone, so much the worse. Command has to be there every outing, or he's just another arm in somebody's bullpen.  Most of baseball is complicated at the major league level, but I think this is one instance where it isn't.

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Duffey will be 31 in December. This might simply be decline. The decline can be sudden for relievers. They often have one really effective pitch and when they lose a little on that pitch they don’t have anything else to fall back on.

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