The NFL league office hands down fines for player safety and sportsmanship related violations each week on Saturday. The physical matchup between the Pittsburgh Steelers and Los Angeles Chargers did not escape the scrutiny of the league. There were three fines, including one suspension, given out, per the NFL Operations page.
Darnell Washington was fined $6,760 for an illegal crackback block. He told the media about this earlier in the week and said he was appealing the fine. Oftentimes, we do not end up hearing about the appeals unless in the case of a suspension.