ICYMI in NFL's Week 6: Can't celebrate in 'No Fun League' (The Associated Press)

Turned out to be a truly consequential flag, too: The 15 yards were assessed on the kickoff, so the ball was booted from Washington’s 20 instead of the 35, and the opponent turned that into a TD return. In the same category: New York Giants receiver Odell Beckham Jr. drew a 15-yarder for unsportsmanlike conduct when he yanked off his helmet after scoring on a 66-yard catch-and-run to beat the Baltimore Ravens 27-23. NFL Senior VP of Officiating Dean Blandino posted a video on Twitter to cite the rules that led to the penalties, with a specificity that sounded sort of silly.
Source: Yahoo.com