I was going to mention how GSP had to have ACL surgery when he was 30, and still was unstoppable on takedowns after he came back, but his main two fights after that were Diaz and Condit, neither of whom were all that good at TD defense, because both were very comfortable off their backs. So, technically, his TDs were still excellent, but we weren't seeing the trademark explosive GSP "power-double" like against Koscheck and Hardy where he'd shoot at center-cage and his TD shot would bounce his opponent into the wall of the cage. But was that age or ACL injury? Or is the ACL waving the white flag at that point a factor of age and the body not being able to keep doing that?
Will be interesting to watch over time and revisit this.