Hey I read some post on sherdog like
"knee wasn't hard"
"renzo was faking it"
Renzo was not faking. If you seen the second knee then Renzo got knocked out from the illegal knee and his head hit the mat. Frank loaded up the knee and it looked like a very powerful shot.
Renzo was controling the the fight. Renzo was impressive. Frank acted like most shamrocks with no class instead of apologizing.