Why did Victor scream at Paul, “’If we lose this game, you’re dead!’” on page 122?

Victor screams at Paul because he'd just missed a kick... completely.

I don't know what happened next. My brain got stuck somewhere between Shoot it now and Trap it first, then shoot it. Anyway, I swung my leg back to kick, but the ball went rolling right under me, through my legs, to the other Palmetto defender, who cleared it away.
Victor was in my face immediately, his finger nearly stabbing through my chest. He screamed, "If we lose this game, you're dead!"