Fortunately, it seems Keller has emerged from his infection without any significant complications. While he hasn’t yet provided any detail regarding his situation, it seems fair to presume he is in good health since he’s now ready to get back to work on the ballfield. Keller had to clear two negative tests before he was able to return.
If the Royals are to mount a surprise run at the postseason in 2020, they’ll need Keller to be at his best. Soon to turn 25, Keller carries a rather nice 3.68 ERA through 305 2/3 MLB frames over the past two seasons.
Though he has averaged a modest 6.4 K/9 and 3.5 BB/9 to this point in his MLB career, the sinker-baller has more than good fortune to cite for his success. Keller owns a 52.0% lifetime groundball rate and 0.65 HR/9 rate to date, both notable numbers in this era of the long ball.
If Keller can continue to tamp down on the dingers, he’ll keep delivering big value to the organization and set himself up for a nice payday as a first-time arbitration-eligible player. Even if he settles in as a back-of-the-rotation starter, Keller already rates as a Rule 5 heist.