Royals demote Kelvin Herrera to Triple-A

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Kelvin Herrera was one of the best relievers in baseball last season as a 22-year-old rookie, throwing 84 innings with a 2.35 ERA and 77/21 K/BB ratio while leading MLB with an average fastball velocity of 98.5 miles per hour.

He’s struggled this season, mostly due to serving up eight homers in 20 innings, but with a 4.87 ERA and 24/8 K/BB ratio he’s hardly fallen apart completely. But that didn’t stop the Royals from demoting Herrera to Triple-A today.

Herrera had a 1.92 ERA in 220 innings as a minor leaguer and has a 3.04 ERA in 107 innings as a major leaguer, so while this strikes me as an overreaction based on a small sample size mostly I just feel sorry for Pacific Coast League hitters.

Vladimir Guerrero, Jr. goes 4-for-4 with walk-off homer in first game of Double-A doubleheader

Paul Chiasson/The Canadian Press via AP
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Blue Jays third base prospect Vladimir Guerrero, Jr. has gotten a lot of press lately and for good reason. He has absolutely torched Double-A pitching so far this season, entering Sunday’s doubleheader batting .407/.456/.676 with seven home runs and 41 RBI in 170 plate appearances.

Guerrero stayed hot, going 4-for-4 in the first game of the doubleheader, ending it in the bottom of the seventh inning — doubleheaders in the minors can be two seven-inning affairs — with a two-run homer.

Guerrero started off the back end of the doubleheader with an RBI single in the first inning, so he’s overall 5-for-5 with four RBI on the day as of this writing. He also now has 21 multi-hit games out of 39 total games this season. Today’s performance marked his second four-hit game; his other one occurred last Wednesday.

MLB Pipeline ranks Guerrero as the No. 1 prospect in the Jays’ system and No. 2 overall in baseball behind the Braves’ Ronald Acuña. The Jays may be forced to summon Guerrero to the big leagues if he keeps hitting like this. In a similar situation, the Nationals promoted hot-hitting 19-year-old outfield prospect Juan Soto earlier today after just 35 plate appearances at Double-A, skipping Triple-A entirely.