This article is part of our The Z Files series.
If you've been keeping score at home, you know it's the Senior Circuit's turn to have their rotations put under the microscope. I'll look at the current and future makeup of the starting fives, with an eye on injury returnees and possible call-ups.
With Robbie Ray back, the front four is set. Shelby Miller also recently returned, though he's struggled in his two outings since rehabbing from Tommy John surgery. He should have a minor-league option left (apologies if this is incorrect). If this is the case, Clay Buchholz could be reinstated into the rotation once he's recovered from an oblique injury. He's eligible to come off the disabled list and wasn't expected to require a long stint, but there's no word on when he'll be back or his role upon his return, at least not at the time of this writing.
The Snakes should be hoping for continued good health, as the reinforcements on the farm are weak and there's nothing by way of an up-and-coming prospect. Matt Koch, who spent most of the first half toiling in the spot vacated by Taijuan Walker, is now starting for Triple-A Reno. Also starting for the Aces is one time big-leaguer Jake Buchanan. Buchanan and Aces is a bit of an oxymoron.