So some people may not remember, but Hayato Sakurai around mid 2001 was ranked the #6 pound-for-pound fighter in the world. He was the clear cut best Welterweight in any promotion, and had an outstanding, undefeated record of 18-0-2. The majority of these wins were finishes, including a KO win over Frank Trigg and a win over Luiz Azeredo (who had already beat Anderson). He was a well rounded fighter who could submit you from a myriad of positions or knock you out, and even had a victory by toe hold. Anderson at the time was a pretty much unknown Welterweight and sported a good, but not spectacular record of 6-1. Anderson's victory was a huge upset, especially when many considered this to be a fairly easy warm up fight for Sakurai as he prepared to fight in the UFC (which he would end up doing anyway). Anderson won the Shooto Middleweight title as a result (170lbs, so today's WW). When the topic of two division champions comes up, Anderson's name never gets brought up. I know he didn't win the 170 title in the UFC, but the truth is that Anderson at one point in time decisively beat the man who was considered the best in the world at that weight. The fact that he also ended up as the most dominant MW of all time is remarkable. This was happened shortly before Hughes became a household name in the UFC, and I think it would've been very interesting to see a young Anderson vs Matt. This is probably the most forgotten great victory in MMA history, and a true testament to Anderson's greatness.