“In “Shadowboxing,” the stories themselves didn’t quite overlap, but all featured fights against an invisible foe. Some were external, and a few were internal. ” Of course we have Claire and that invinsible girl. We also have the fight between Matt and Sylar.

Watch Heroes Season 4 Episode 9 – Shadowboxing

I think Matt was very brave on this episode. Knowing that Sylar can kill anyone in sight if Matt didn’t stop controlling him, he manages to tip the policemen and he’s willing to be killed just to stop Sylar