The 49ers have had several extra days of rest themselves — a condition in which Brock Purdy is 3-0 straight up in regular-season games when the spread is four points or less. The Chiefs’ league-leading pressure rate is challenged with Purdy’s 67 percent completion rate when under duress.

What to look for from the top 49ers and Chiefs players and how to watch the game as they face off on Sunday, week 7.