Randy Couture fought for the love of the sport and for an intense affinity of the physical aspect of MMA, which allowed him to have one of the longest and most prolific careers in UFC history. Unfortunately, his career was ended on a pretty emphatic note, as Lyoto Machida went full Ralph Macchio and sent "The Natural" into retirement with a crane kick that knocked out the 47-year-old icon nine years ago to the day at UFC 129.
Couture hung it up immediately after this fight, while "The Dragon" would go on to get eviscerated by light heavyweight champion Jon Jones before winning four of his next five fights in the 205-pound division.
Before Conor McGregor was hopping between divisions, it was Couture who became one of only seven fighters in UFC history to win title belts in two separate weight classes, which speaks to just how talented he was before Machida ended his long, storied career.
Couture's legacy as one of the most competitive fighters that ever got into the Octagon is as secure as they come, but his career ended on a really sour note when Machida sent him tumbling to the mat.