Sleepy baseball players

Fatigued ballplayers make worse decisions as the season goes on

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Drug dealers who sell greenies Vanderbilt University neurologist Scott Kutscher discovered something interesting:

To see whether baseball players suffer the effects of sleep loss as the season drags on (or skips along for six non-tedious months, depending on your inclinations), Kutscher and his colleagues looked at data from 2011 back to 2006, after the MLB cracked down on steroid use. For each team, they tracked how often players swung at pitches outside the strike zone. Over the course of the season, the researchers saw a steady increase in how many out-of-the-strike-zone pitches players swung at. These badly judged swings went up by about six-tenths of a percent each month.

There may be some other factors at play like less-experienced players filling out rosters late in the season, but Kutscher says that these results tracked what they’ve observed in other people who have suffered from fatigue and sleep-deprivation.

But I’m sure that players who took amphetamines to “pep up” before games back in the 60s and 70s didn’t experience any performance-enhancement at all.

(thanks to Morgan Jackson for the heads up)

Giants acquire Eduardo Nunez from the Twins

ARLINGTON, TX - JULY 07: Eduardo Nunez #9 of the Minnesota Twins throws for an out at first in the fourth inning during a game against the Texas Rangers at Globe Life Park in Arlington on July 7, 2016 in Arlington, Texas.  (Photo by Sarah Crabill/Getty Images)
Sarah Crabill/Getty Images
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The Giants have acquired All-Star infielder Eduardo Nunez from the Twins in exchange for minor league pitcher Adalberto Mejia, the club announced on Thursday night.

Nunez, 29, went 0-for-4 in Thursday night’s game against the Orioles. He’s hitting .296/.325/.439 with 12 home runs, 47 RBI, 49 runs scored, and a league-best 26 stolen bases in 391 plate appearances this season. Nunez has played mostly at shortstop this season, but has also logged significant time at third base and a handful of games at second base, so he’ll give the Giants some versatility.

Nunez will likely play a lot of third base for the Giants as Matt Duffy is still sidelined with a strained left Achilles. He’s earning $1.475 million this season and will enter his third and final year of arbitration eligibility heading into 2017.

Mejia, 23, was considered the Giants’ seventh-best prospect by MLB Pipeline. He earned a promotion to Triple-A Sacramento last month after posting a 1.94 ERA with Double-A Richmond. In seven starts with Sacramento, he has a 4.20 ERA with a 43/11 K/BB ratio in 40 2/3 innings.

With a roster spot open, the Twins called up infield prospect Jorge Polanco from Triple-A Rochester, per MLB.com’s Rhett Bollinger.

Report: Mariners’ Taijuan Walker drawing “strong” trade interest

SEATTLE, WA - JUNE 08:  Starting pitcher Taijuan Walker #44 of the Seattle Mariners looks on from the dugout after completing eight innings against the Cleveland Indians at Safeco Field on June 8, 2016 in Seattle, Washington.  (Photo by Otto Greule Jr/Getty Images)
Otto Greule Jr/Getty Images
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Bob Nightengale of USA TODAY reports that the Mariners have received “strong” trade interest for starter Taijuan Walker. The right-hander is currently on the mend from tendinitis in his right foot.  He’ll throw a bullpen on Friday at Wrigley Field with scouts in attendance.

Walker, 23, has a 3.66 ERA with an 80/18 K/BB ratio in 86 innings this season. It’s his first bit of sustained success at the major league level. What’s arguably just as intriguing is the fact that Walker will be under team control through 2020.

The Mariners have been hovering around .500 for the last month and entered Thursday six games behind the first-place Rangers in the AL West and 4.5 games out of the second AL Wild Card slot, behind three other teams as well as the two Wild Card leaders. It’s enough uncertainty which could push the Mariners to sell.