It's been four years since Georges St-Pierre walked out of the MGM Grand Garden Arena in Las Vegas with a controversial decision win over Johny Hendricks.
When he left, he was the biggest drawing card in the UFC, and one of three men who would have been in the argument at the time, with Fedor Emelianenko and Anderson Silva, to be the greatest fighter in the history of the sport.
It doesn't sound like a long time, but in MMA, four years is an eternity. UFC realized it a few months ago when they did a marketing study and found out that a shockingly large percentage of their pay-per-view buyers over the last few years either didn't know St-Pierre, or had no emotional ties to him.