The Royals announce that 50-year-old manager Dick Howser, who led the club to a World Championship last season, will miss the rest of the season to undergo treatment for a brain tumor that is later revealed to be malignant. 3B coach Mike Ferraro will manage the club in Howser’s absence.

On July 18, 1986 — The Royals announce that 50-year-old manager Dick Howser, who led the club to a World Championship last season, will miss the rest of the season to undergo treatment for a brain tumor that is later revealed to be malignant. 3B coach Mike Ferraro will manage the club in Howser’s absence.

Source:
Baseball Reference July 18