Has Rick Porcello turned a corner?

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Rick Porcello had to battle just to keep his rotation spot this spring, but he’s currently showing some signs of a breakthrough.

Porcello allowed three hits and no walks over seven scoreless innings last night in a 3-0 victory over the Twins. While he still holds a mediocre 4.37 ERA for the year, he has a 2.84 ERA and 56/10 K/BB ratio in 57 innings over his last nine starts.

As Neil Weinberg of New English D points out, Porcello’s success goes well beyond ERA. The 24-year-old currently has career-bests in strikeout rate (7.59 K/9), walk rate (1.59 BB/9) and ground ball rate (56 percent). It makes for a pretty valuable combination.

He’s striking out more than 7 batters per 9, walking fewer than 2 batters per 9 and has a groundball rate above 50%. From 2000-2012, here is the list of pitchers who have finished a season with that mix: Halladay (4x), Carpenter (3x), and Hamels (1x). In 2013, the pitchers on that list are Felix Hernandez, Doug Fister, and Rick Porcello. That is some excellent company.

If we push the limits farther, to 7.5 K/9, 2.0 BB/9 and 55% GB (which Porcello has) the list of pitchers since 2000 to accomplish that feat drops to zero. Nobody. We don’t have groundball data from before the early 2000s, so I can’t tell you how rare this is in MLB history, but since the data became available, it’s never been done.

Very interesting. While it’s easy to write this off as a hot streak given Porcello’s past results, it’s important to note that he has altered his pitching mix, adding in more curveballs and changeups than ever before. If he has truly taken a step forward as a pitcher, the Tigers’ rotation could be more dangerous than we already thought.

Hunter Pence appeared as guest on Bill Nye’s new show

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Bill Nye — yeah, “the science guy” — has a new show on Netflix called Bill Nye Saves the World. His show ties science to other areas such as politics, pop culture, and sports. Giants outfielder Hunter Pence was invited to appear as a guest.

Nye talked a bit about Pence and marveled at the dedication players must have to stay competitive in the sport. Nye called Pence “a cool guy” and “charming,” which is not surprising.

Shelby Miller left Sunday’s start with forearm tightness

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Diamondbacks pitcher Shelby Miller left Sunday’s start against the Dodgers after four-plus innings due to tightness in his right forearm, the team announced. He’ll be reevaluated tomorrow. Needless to say, though, a forearm injury is very concerning. In his four innings, Miller gave up three runs on four hits and five walks with three strikeouts, raising his ERA to 4.09.

Miller, 26, has had a nightmare of a time since joining the Diamondbacks in December 2015. Last year, he made 20 starts and posted a 6.15 ERA. He suffered a finger injury suffered from scraping his hand on the pitcher’s mound with his follow-through, and he was also demoted to Triple-A during the summer as well.