The poor recent outings from Jason Grilli have only highlighted his shaky performance in 2014. The Pirates closer hasn't been good by either traditional or sabermetric statistics. He's 0-2 with a 4.08 ERA, while blowing 3 saves out of his 14 opportunities. In 17 2/3 innings, he has struck out 17 (8.66 K/9) and walked 10 (5.09 BB/9). Grilli hasn't posted that low a strikeout rate or that high a walk rate since coming to Pittsburgh. Those numbers, combined with a sky high 1.53 HR/9, have resulted in a FIP of 5.24 and a xFIP of 4.73.
His work this year is still a "small sample size", and there's some reason to expect better performance going forward. So far, 13.0% of fly balls off of Grilli have left the park, which is above the league average and Grilli's career rate. Conversely, t...
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