Michael Allio/Icon Sportswire via Getty Images
NFL senior vice president of officiating administration Perry Fewell sent a memo to general managers and head coaches of the 14 teams that made the playoffs regarding "the importance of sportsmanship" with the postseason set to begin Saturday.
Jonathan Jones of CBS Sports obtained the memo and relayed it on Thursday.
"At this level of competition emotions will run high, but no amount of emotion should give way to demeaning and offensive words, taunting, or other non-football acts," Fewell wrote. "No one wants a penalty, or a player ejection, to determine the outcome of a game.