Five MLB pitchers who have taken a step backward in 2018

MLB: Chicago White Sox at Kansas City Royals
Five MLB pitchers who have taken a step backward in 2018
Sep 2, 2018; St. Louis, MO, USA; St. Louis Cardinals starting pitcher Luke Weaver (7) pitches during the first inning against the Cincinnati Reds at Busch Stadium. Mandatory Credit: Jeff Curry-USA TODAY Sports

Luke Weaver, St. Louis Cardinals

The Cardinals have surged toward the playoffs over the past month or so and have benefitted from their young starting rotation. Luke Weaver’s 2017 performance forced his way into that conversation at the start of this season, but he’s done the opposite during his sophomore campaign.

Weaver’s plate-discipline and contact rate stats haven’t changed much, but his zone percentage has dropped four percentage points compared to last year, and his hard-hit rate allowed has risen 10 percentage points.

He’s struggled greatly at home, which is actually nothing new. Since debuting in 2016, his ERA at Busch Stadium has never been below 4.72, and it’s currently up at 5.52 this season. The difference has been his performance on the road. After posting a 2.77 ERA in 26 innings as a visitor in 2017, that number has climbed to 4.25 through 72 innings this year.

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