Moustakas is not in Tuesday's lineup due to a swollen thumb, Rustin Dodd of The Kansas City Star reports.
Moustakas' injury is only minor, according to manager Ned Yost, and there is a chance he could play Tuesday if needed even though he will not start. Moustakas should have a chance to return to action Wednesday, but he faces a quick turnaround with the Royals playing an early afternoon affair.