Training beyond injuries

My friend and business partner Luca Senatore got seriously injured during a MMA training session back in January.  While wrestling with a 125Kg opponent he got his left knee bent in the wrong direction and he ruptured most of the ligaments.  Luca will be operated in July to sort out the damage but as relentless as it is he recently started to train again to rebuild strength and go under the knife in best possible shape, fostering a quick recovery.  Yesterday he produced a little video that inspire me to go and do some more training as if my 4 times per week training regime was not enough.  Please have a look and let me have your comments: