Rios has been diagnosed with chickenpox and could miss at least two weeks, The Kansas City Star reports.

EDGE Analysis

It's now clear what ailment Rios is dealing with, and it appears it could sideline him for a bit. The Royals figure to let Rios take as long as he needs to recover from the illness, so he may not be back on the field until mid-to-late September. Jarrod Dyson and Jonny Gomes are the top candidates to see extra at-bats in Rios' place.