Japanese baseball officials admit to altering the baseball to increase offense

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Home runs and batting average have increased sharply in the NPB this season, and after months of denying that the ball had been altered in any way, Japanese baseball officials are admitting that they tinkered with it in order to “make the game more exciting” and increase offense:

Players and fans had repeatedly quizzed Nippon Professional Baseball (NPB) bosses after seeing a 40 percent rise in the number of balls that were slugged out of the park so far this season.

In April NPB said the specifications of their ball — each of which bears the signature of its commissioner Ryozo Kato — “have not been changed”, a statement that was repeated several times since.

But on Tuesday NPB came clean, saying they had asked manufacturer Mizuno to “adjust” the ball to give it greater bounce off the bat and demanded the company keep quiet about the switch.

Altering baseballs is not unprecedented in baseball history, of course. In 1930 offense made the so-called Steroid Era look like 1982 or something. Half the teams scored 900 runs or more and the average hitter in the American League — just the AVERAGE ones — hit .303/.360/.448. That winter baseball deadened the balls a bit, with the AL altering the stitching and the NL doing both that and adding a cover to its balls. Offense went down significantly in 1931, more so for the NL.

1987 is widely suspected to be another year in which the ball was altered. Baseball has never admitted to doing anything, but the season was an offensive aberration and unlike other eras of changing offense it was an outlier, with the next and previous years looking pretty similar and no other explanation that makes a lick of sense.

I strongly suspect that the baseballs were altered again in the 1990s. There were multiple explanations for increased offense at that time, including double expansion, much smaller parks, smaller strike zones, different hitting approaches and, of course, performance enhancing drugs, but I’ve always thought that the baseball had something to do with it too. Not that anyone ever wants to blame anything other than steroids.

But I think this NPB story shows that it doesn’t take much for offense to increase significantly. Sometimes just a change in the ball. Which league officials are inclined to deny.

Adam Eaton sustains leg injury after tripping over first base

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Nationals’ outfielder Adam Eaton was carried off the field after stumbling over first base on Friday night. In the ninth inning of the Nationals’ 7-5 loss to the Mets, Eaton appeared to catch his ankle on the bag as he ran out an infield single, suffering a leg injury on the fall. He was unable to put pressure on his left leg after the play and required assistance by two of the Nationals’ athletic trainers as he exited the field.

Eaton is scheduled to undergo an MRI on Saturday, but Nationals’ manager Dusty Baker told reporters that it “doesn’t look too good.” It’s the first significant leg injury the outfielder has sustained since 2014, when he went on the 15-day disabled list with a hamstring strain. He’ll likely be replaced by Michael Taylor in center field for the next couple of games, though that could be a temporary fix as the Nationals seek a better solution during Eaton’s recovery process.

Madison Bumgarner likely sidelined through the All-Star break

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It’s been just over a week since Giants’ left-hander Madison Bumgarner got a serious scare after a nasty dirt bike accident. He escaped with bruised ribs and a Grade 2 strain of his left shoulder AC joint, but there was some speculation that the injuries would cause a significant, if not permanent, setback in the southpaw’s career. Thankfully, things aren’t looking quite so bleak today. Not only will Bumgarner not require surgery, but he could return as soon as the week following the All-Star break, the Giants said Friday.

Of course, that timeline is wholly dependent on how smoothly the recovery process goes, so nothing is set in stone yet. NBC Sports Bay Area’s Alex Pavlovic estimates 2-3 months of rest and rehab, including “two months before he can get back on the mound and then another three to four weeks of throwing and rehab starts before he’s big league-ready.” It’s a long and laborious schedule, but still looks much better than any surgical alternative.

Prior to the accident, Bumgarner was working on a solid start to the 2017 season. He maintained a 3.00 ERA, 1.3 BB/9 and 9.3 SO/9 through 27 innings with the club, though his average 1.75 runs of support per start fed into an 0-3 record.