In October of 2018, Klay Thompson broke the NBA’s single-game 3-pointers record with 14 splashes in Chicago. Due to a gash on his forehead that would eventually require stitches, Thompson would wear a gold headband as he tied and broke the record previously held by Stephen Curry.
“I look like Jackie Moon out there,” Thompson said after that game in 2018, referring to the role played by actor Will Ferrell in the 2008 movie Semi-Pro. “He's probably one of my favorite characters in all sports movies.”
Two days later when the Warriors returned home to what was then known as Oracle Arena, Thompson attended a Halloween matchup against New Orleans dressed up as Jackie Moon, and he has picked up the headband look again since returning from his two-and-a-half year injury-induced absence.