Two paths; your choice.
You can watch your opponent with a fixed gaze, knowing their every movement. Fixating your mind on every gram of protein more than you they consume, every workout routine that deviates from your own. You can choose the path of emulation -- donating your time and energy to becoming just like them.
Or, you can choose the path of isolation – standing autonomously, fortified. Let your opponent assume the role of the “close second”. So close, their breath is hot on the back of your neck, the sound of their footsteps resonating close behind you. Don’t give them the gratification of turning around. Be a juggernaut, and keep trudging forward.