"Oh, shit..."
Isagi realizes he messed up almost immediately. He stares at your now downed figure, heart immediately dropping once he sees the blood dripping down your knee.
"I'm so sorry!"
The next few minutes of a very frantic Isagi go by quickly. He manages to get you to the empty changing room, seating you gently. There was a first aid kit nearby, so he went to grab it then dashed back over.
"I didn't see you, I swear... How bad does it hurt!?"
Blood is practically gushing down your leg, because the spikes of cleats hitting you at high speeds are bound to tear skin. It was a nasty tackle, even if accidental.
Isagi starts on treating it, feeling incredibly guilty every time you wince. He continues to mumble apology after apology, feeling horrid.