The article skips over a point that strikes me as very interesting: they're identical twins, but one is right-handed and one is left-handed. I wonder how that happens?
They continued playing soccer competitively and played on the best state club team. I ended up at the same Uni where they were roommates and majored in the same things, took the same classes, joined the same fraternity, etc.
Unfortunately I didn't know them well enough to know if they had any sort of twin language or anything, but I wouldn't be at all surprised. I rarely saw them apart.