Out of sheer necessity, sports security has been evolving rapidly since the Boston Marathon bombing, and most sports security professionals refer to that particular event as a turning point. Metal detectors have become commonplace in major league stadiums, new security policies have been formed, and even tailgating was banned at this year’s Super Bowl.

Three people were stabbed during a late-night scuffle outside Denver’s football stadium after the Broncos lost 27-20 to the San Diego Chargers on Thursday night, according to a CNN report. One of the victims is in critical condition, and police have three people in custody. A fourth person may have been injured in the incident in the parking lot next to Sports Authority Field at Mile High. That person left without seeking treatment.

Thousands of people were near the Chesapeake Energy Arena Monday night when eight people were shot, one of whom is in critical condition.

Weapon smuggled into New Jersey stadium, even during 9/11 heightened security awareness.

In the world of sports, it’s all about reaching the next level: the World Cup in soccer, the Stanley Cup in hockey, the Masters in golf, the World Series in baseball, the Super Bowl in football and the U.S. Open in tennis, among others. Name the sport, there’s a championship to win. But first, the facilities – the stadiums, arenas, golf courses and other facilities in which the sports are played – have to be secure.

Security guards at Madison Square Garden who claimed they had been cheated out of overtime pay have been awarded $1.3 million.