Steve Yzerman was hit in the eye socket with a puck. Because he was not wearing a visor, the puck broke the bone around his eye and caused extensive damage. Still, he was able to come back and play again.
Steve Yzerman uses a lot of analysis, input from other great hockey minds, and planning. He tries to make sure that each player will bring specific things to the table, but he also tries to match up playing styles.