Ronaldo hat-trick inspires Portugal
The hosts looked to be on course for a stunning upset when Jamie Ward’s scrambled effort put them 2-1 in front and a man to the good after Helder Postiga’s dismissal.
But makeshift left-back Chris Brunt saw red on the hour and Ronaldo took control with a pair of powerful headers and a late free-kick, before Kyle Lafferty’s dismissal completed Northern Ireland’s misery.