they take on serbia in what's gone kbonown as the group stage. >> soaring slam and 10-point accuracy from behind the arc. u.s. men's basketball team, that gold has never been a question. until australia almost turned the newest version of the dream team's road to glory into a nightmare. >> not an easy night for the united stas. >> reporter: really the only competitor that the u.s. faces is itself. complacency is going to be the main issue they face. if they can get over that, i >> reporter: but for a team that's gotten used to gold, the hardware isn't necessarily the prize. >> the bond that we will have for a lifetime of winning gold in the olympics will be more special than the actual gold medal. >> reporter: the 12 superstars have already grown closer. >> this is the tightest team i've ever been on and i feel as though everybody here relates to one another and we respect each other but we have a good t well. >> reporter: who's the best singer? >> i am. >> reporter: can you sing a little for me? >> no. i am. not me. >> reporter: basketball brought them to rio but they're making the