I don't particularly agree that BJJ is the top dog solo sport. In the early days of MMA, it certainly outcompeted fighters who were boxers, kickboxers, karate e

I don't particularly agree that BJJ is the top dog solo sport. In the early days of MMA, it certainly outcompeted fighters who were boxers, kickboxers, karate experts, etc, but there was a notable absence of certain sports, such as combat sambo, until recently. Khabib has shown how effective it can be against high-level BJJ practitioners.