At age 36 and soon to be 37, Anderson Silva has accomplished a lot in his time as a mixed martial artist. He has dominated the UFC middleweight division and even ventured into the light-heavyweight division on occasion.
Silva is 31-4 in his career and has been the most dominant striker in the history of MMA, totaling 18 knockouts.
Silva has had nine consecutive UFC middleweight-title defenses but other than his wins over Rich Franklin and Dan Henderson, his title defenses and overall competition have been mediocre at best.
I also have trouble with Anderson being unwilling to fight other top fighters, especially in the light-heavyweight division such as Lyoto Machida and Jon Jones. Even more so since he cut his weight down from approximately 220-230 pounds.
Take nothing away though, Anderson Silva is one of the most dangerous men on the planet.