Manager Jeff Banister said following Tuesday's game that Bush was "unavailable," the Dallas Morning News reports.
EDGE Analysis
Banister said Bush's 29-pitch outing Sunday may have had something to do with it, but it's possible he's nursing some sort of minor injury or illness. Closer Sam Dyson has been atrocious to start the year, so if Bush has an injury, it's a poorly timed one, as he has a chance to take over the ninth inning if he's healthy.