Scunthorpe United's Glanford Park is the venue for the tie.
The teams line up for the national anthems.
Australia make a bright start, and surprise their more fancied opponents by taking a 24th minute lead, Brodie Paterson and Kwabena Boahene combining to set up Anthony Proia for the finish.
Portugese coach Emilio Peixe is making full use of his squad in the first of three games in five days, and has left what would probably be considered his first choice attacking players on the bench, but he is clearly unhappy with his side's performance, and a double change is rewarded a couple of minutes before the interval when a quick break sees Helder Costa fire home.
A frenetic start to the second half sees both teams hit the woodwork before Anthony Proia restores Australia's lead on 51 minutes. Leandro Silva quickly levels with a superb finish from outside the penalty area, but an equally well struck Milos Degenek free-kick makes it 3-2 to Australia, before Sancidino Silva's defence splitting run sets up Helder Costa for a third equaliser.
All this takes place in a twenty minute spell, but Portugal are looking a constant threat now, and they go ahead for the first time as Helder Costa completes his hat-trick after 76 minutes.
There is no way back for Australia in the short time that remains, though they can take considerable credit in pushing so hard a nation who are always amongst Europe's leading lights at youth level.
