‘The Notorious’ Conor McGregor is watching back some of his older fights and offering his thoughts on his performances. This Irish superstar recently Tweeted about his UFC lightweight world championship showdown against ‘The Eagle’ Khabib Nurmagomedov. During this bout, while McGregor was being held on his back, he launched a knee and landed it on Nurmagomedov who was on top but still a grounded fighter. Kicks and knees to grounded opponents are illegal, even if the offending fighter is also on the ground. Conor McGregor first Tweeted a name for this maneuver, he said: “I call this knee strike “the…