Originally Posted by emcee
Retards are still debating that knee?
It was 100% legal and it was the beginning of the end for Chael after he took it.
It wasn't legal because the lower part of the thigh is considered the knee. The fighters know this because it is part of the pre-fight meeting.
However, if the ref doesn't catch it, and the fighter doesn't contest it, the rules also say that you don't over turn it.