Daniel Nava’s back problem turned out to be non-minor:
Daniel Nava had back surgery yesterday in Arizona, per Todd Tomczyk. He'll be out 10-12 weeks.— Adam Berry (@adamdberry) February 28, 2018
The news obviously impacts the competition for the Pirates’ final bench spot. It’s probably more or less down to Bryce Brentz, Jordan Luplow, Max Moroff and Jose Osuna. All but Brentz have options.