for 2016, would not have applied to Beckham. Phil Dawson rule: Certain field goals can be reviewed by instant replay, including kicks that bounce off the uprights. Under the previous system, no field goals could be replayed. Enacted in 2008 in response to an unusual field goal by the Cleveland Browns kicker in a 2007 game against Baltimore: the ball hit the left upright, then hit the rear curved post (stanchion), then carried again over the crossbar, and landed in the end zone in front of the goalpost. It was initially ruled by the officials as "no good", but was reversed "upon discussion". Red Grange rule: Prohibits college football players from signing with NFL teams until after their college class had graduated and from playing both college football and in the NFL in the same season. The rule was enacted after Red Grange and Ernie Nevers joined the Chicago Bears and Duluth Eskimos, respectively, immediately after their final college football games in 1925. Ricky (Williams) rule: Rule declared that hair could not be used to block part of the uniform from a tackler and, therefore, an opposing player could be tackled by his hair. Enacted in 2003. Rule was so-named after running back Williams' long dread-locks. (Dan) Rooney Rule: Requires teams to interview minority candidates for a head coaching opportunity. Enacted in 2003. Pittsburgh Steelers owner Rooney was a major proponent of such a change. Roy Williams rule: No horse-collar tackles. Enacted in 2005 after the Dallas Cowboys safety broke Terrell Owens's ankle and Musa Smith's leg on horse-collar tackles during the previous season. (Paul) Salata rule: A team is not allowed to pass on a draft pick at the end of the draft in an effort to secure the last pick. Named after Paul Salata, who many years after his playing career established the Mr. Irrelevant ceremony; it became so popular that in the 1979 NFL Draft, the two teams with the last selections repeatedly passed to each other hoping the other would pick and they would get the Mr. Irrelevant publicity, necessitating the rule change. Shawne Merriman rule: Bans any player from playing in the Pro Bowl if he tests positive for using a performance-enhancing drug during that season. Enacted in 2007 after the San Diego Chargers linebacker played at the 2007 Pro Bowl after testing positive and serving a four-game suspension during the preceding season. Steelers rule: