The Glory sent their ninth penalty over the bar, but Kelly-Heald made no mistake of his kick to seal the win for Wellington and spark wild celebrations.
However, Phoenix head coach Giancarlo Italiano missed Kelly-Heald’s decisive spot kick, but not his maiden goal for the Phoenix.
“I don’t watch penalties so I’ve got to watch the replay and see his finish. I heard there were some good penalties.
“He put in a great stint. There was talk about taking him off in extra time but he just trooped through.
Italiano named the same XI who started last week’s match against Wrexham AFC.
Auckland FC play their Round of 32 game on Tuesday against the Gold Coast Knights.