Darwin amateur outfit Hellenic almost pulled off the biggest Cup upset ever when they were level 3-3 with the Wanderers late in the match.

Roly Bonevacia struck in the 91st minute to save Western Sydney's blushes and ensure they left the Territory with a victory.

But it was an oustanding effort from the NorZone Premier League team, who fought back from 2-0 down to give the Wanderers a scare of a lifetime.

"We're all still buzzing, we can't really believe what just happened," Boubaris told FourFourTwo after the game.

"The boys played beyond expectations. I was talking with some of their staff [Western Sydney's] after the game and yeah, they were pretty worried.

"We pushed them all the way and no doubt in future they won't take us so lightly."

Winger Sulev Maskey was the hero for Hellenic, grabbing a brace.

A crowd of 3,000 was on hand at Darwin Football Stadium to see the Round of 32 match.