Colorado Rockies v Los Angeles Dodgers

Kenley Jansen racking up strikeouts at historic rate

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Last season Carlos Marmol set the all-time record by striking out 16.0 batters per nine innings, becoming the first pitcher in baseball history with a strikeout rate above 15.0.

Marmol’s record is probably safe, but Dodgers reliever Kenley Jansen looks set to join him in the 15-plus club. Last night Jansen closed out a 3-2 victory for his fourth save of the season and struck out the side in the process, giving him 83 strikeouts in 48 innings overall.

That works out to 15.6 strikeouts per nine innings, which is the second-highest rate of all time:

                  YEAR     SO/9
Carlos Marmol     2010     16.0
KENLEY JANSEN     2011     15.6
Eric Gagne        2003     15.0
Billy Wagner      1999     15.0
Brad Lidge        2004     14.9

Predictably the top five spots all belong to relievers from the past 15 years. In terms of strikeout rates for starting pitchers Randy Johnson has the all-time record with 13.4 in 2001, when he whiffed 372 batters in 250 innings for the Diamondbacks.

Jansen, who began his pro career as a light-hitting catcher and didn’t move to the mound until 2009, has a 2.28 ERA, .156 opponents’ batting average, and 124 strikeouts in 75 innings as a big leaguer.

Jon Niese leaves start with knee pain

PHOENIX, AZ - AUGUST 17:  Jonathon Niese #49 of the New York Mets delivers a pitch during the first inning against the Arizona Diamondbacks at Chase Field on August 17, 2016 in Phoenix, Arizona.  (Photo by Jennifer Stewart/Getty Images)
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Mets starter Jon Niese left his start Tuesday night against the Cardinals due to left knee pain.

Niese walked two and gave up an RBI single before leaving with a trainer with one out in the bottom of the first inning. He was eventually charged with three earned runs. Robert Gsellman, just up from Las Vegas, took over, making his major league debut under unexpected circumstances.

Niese, who has not pitched well at all since coming over in a trade with the Pirates, is likely to be placed on the disabled list after the game or before tomorrow’s game.

Mark Trumbo’s home run streak ends

OAKLAND, CA - AUGUST 11:  Mark Trumbo #45 of the Baltimore Orioles hits an RBI single against the Oakland Athletics during the fourth inning at the Oakland Coliseum on August 11, 2016 in Oakland, California. The Baltimore Orioles defeated the Oakland Athletics 9-6. (Photo by Jason O. Watson/Getty Images)
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Mark Trumbo still has many chances to hit a home run tonight — it’s only been an inning or so in the Nats-Orioles game — but his weird home run streak is over.

Coming into tonight’s game, Trumbo’s last seven hits had been homers. The all-time record had been 11, set by Mark McGwire back in 2001. The last time Trumbo got a hit that wasn’t a dong was back on August 11. Later in that game, however, he hit a grand slam. After that he went 6 for his next 34, with all those safeties dingers.

But that’s over now. In the first inning tonight he drove in a run with a two-out single. Then he was thrown out trying to stretch it to two. Good job on the RBIs, Mark. Bad job on the base running. Judgment withheld on the homer streak because, really, that’s just kind of weird and cool.