“…both fought bitterly. But Guy knocked his adversary from his horse and kept him down easily with his lance as he was struggling to get up. Then his opponent, running nearer, ran Guy’s horse through with his sword, disemboweling it. Sliding from the horse, his sword drawn, Guy attacked his adversary. A continuous and bitter encounter followed with exchanges of sword blows, until, worn out by the weight and burden of their arms, they threw away their shields and hastened to win the fight with their strength in wrestling. Iron Herman fell prostrate to the ground, and Guy threw himself on top of him, pounding the knight’s mouth and eyes with his iron gauntlets. But just as one reads of Antheus, the prostrate man gathered strength bit by bit from the coolness of the ground and slyly made Guy think he was certain of victory while he rested. Meanwhile, having raised his hand very smoothly to the lower edges of the mail coat, where Guy was unprotected, and grabbed him by the testicles, he collected his strength for a single effort and threw him from him, breaking open all the lower parts of his body by this grabbing throw so that the prostrate Guy grew weak and cried out that he was defeated and was going to die.” - Galbert of Bruges.
“…both fought bitterly. But Guy knocked his adversary from his horse and kept him down easily with his lance as he was struggling to get up. Then his opponent, running nearer, ran Guy’s horse through with his sword, disemboweling it. Sliding from the horse, his sword drawn, Guy attacked his adversary. A continuous and bitter encounter followed with exchanges of sword blows, until, worn out by the weight and burden of their arms, they threw away their shields and hastened to win the fight with their strength in wrestling. Iron Herman fell prostrate to the ground, and Guy threw himself on top of him, pounding the knight’s mouth and eyes with his iron gauntlets. But just as one reads of Antheus, the prostrate man gathered strength bit by bit from the coolness of the ground and slyly made Guy think he was certain of victory while he rested. Meanwhile, having raised his hand very smoothly to the lower edges of the mail coat, where Guy was unprotected, and grabbed him by the testicles, he collected his strength for a single effort and threw him from him, breaking open all the lower parts of his body by this grabbing throw so that the prostrate Guy grew weak and cried out that he was defeated and was going to die.” - Galbert of Bruges.
You probably want to go with the firing squad