With the Olympic games in full swing in the Brazilian capital, and the Russian doping scandal being the controversy on everyones lips – we’ve decided to take a look back at some of the biggest shocks in the games’ history.

From rigged boxing matches to people cheating in the marathon, we can only speculate about what will come out of the 2016 events.

Here are 25 of the biggest scandals that have ever surrounded the Olympic games.

Modern Pentathlon Cheater

The modern pentathlon consists of five separate sports: pistol shooting, horse jumping, freestyle swimming, epee fencing and cross-country running. While it’s an amazing sport to watch, it has drawn scandal in it’s time. In 1976, Russian modern pentathlete Boris Onyschenko cheated during the fencing by tampering with the sensors in his suit.

The Flag Incident

At the 2012 Olympics, officials accidentally put the images of the South Korean flag next to the bios of the North Korean players.