Professional sports represent an ongoing story. Each passing season results in another chapter being written. While each year has its own unique events, different protagonists and new sub-plots, there isn’t usually a lot that changes year on year. However, just like fashion, music, and politics can often be split into distinct eras, sports too can often be defined by the longer-term trends that occurred during certain time periods. Here are some of the biggest things we saw in sports during the 2000s. Online Sports BettingBetting on sports has always been popular, particularly in competitions like horse racing. However, before