Jordan Bos doesn't know how good he can be.
But arguably Australia's best player, the explosive left wing-back with a lethal left foot has been building for this World Cup since he learned to walk.
The Feyenoord sensation is poised for a tournament that could catapult him into superstardom and a berth in the Premier League, Bundesliga or other top league.
"He's unbelievable. He's had an amazing season, just getting better and better and better," teammate Harry Souttar tells AAP.
"I don't think he realises how good he is himself.
"He's just a great player, great guy to be around and just takes everything in his stride. There's nothing that fazes him and nothing's too big for him."
Bos plays on instinct: backing his speed to beat an opponent, going on incredible marauding runs then scoring or setting up a teammate.
