Which of these was a phenomenon related to a rookie pitcher in the ‘80s?

Fernando Valenzuela got thrown into an opening day start at 20 years old, and was about as good as anyone has ever been to start his career: 8-0 with five complete game shutouts and an ERA of 0.50, leading to Rookie of the Year and Cy Young awards.

Asked by Kevin McCaffrey · Last updated 5 years ago · 900 views · SOURCE