Hai Nam Hoang isn't the kind of player to look for calls where there aren't any. He prides himself on humility, and taking the high road. Often if he does take a penalty, he'll stop to calmly ask the referee what he saw, and what he should try to avoid. In the given situation, Hoang would likely wince, as he has been cut in that same place before, but that's likely to be all that happens. If the referee sees that and calls the penalty, Hoang won't make any noise, but he will later go to the ref AFTER the penalty expires to let him know he was just wincing. Humility goes as far as you push it, so Hoang can move his boundaries if it means helping his team, but only by so much before he reverts to being the polite understanding player to the refs.