Quarter-final

St George FC v Wollongong United at St George Stadium

Match to be played on Wednesday,  June 5

Wollongong United are drawn against the only other non-NSW Premier League side left in the competition, but skipper Igor Kotevski doesn't want complacency to end their giant-killing Waratah Cup run.

The Illawarra Premier League outfit took a second straight big scalp after sending Sydney United packing last Wednesday night - a fortnight after brushing aside Blacktown Spartans.

Paul Carter's side has been pitted against St George in the quarter-finals, with the six remaining NSW Premier League sides completing the draw.

But Kotevski said his side would have to maintain intensity before their trip to St George Stadium on June 5 in order to advance to the final four.

"Lately we've been playing at our opposition's level, I've noticed," he said.

"When we've played some of the lesser teams in our comp we've struggled and just beat them.

"We might be on the same level as St George and there might be a little more pressure there because we're probably on a level playing field.

"It's important we don't get complacent against these teams."

Wollongong United and St George played in a pre-season match when the depleted United were outclassed.

The reigning Bert Bampton Cup winners did not enter the Waratah Cup last season, but already have their sights set on emulating local rivals Dapto Dandaloo, who advanced to the semi-finals of the statewide knockout last year.

"They've done it before and we know we're just as good, if not better," Kotevski said.

"We definitely took heart from that and have belief in ourselves.

"[Dapto] Dandaloo paved the way, and ... now it's us making a good run in the comp and we're confident of going further.

"Why not?"

Nathan Jagelman and Stefan Donesvki fired Wollongong United into the last eight, cancelling out Sydney United's early opener at Macedonia Park.

"[The Waratah Cup] has given an extra buzz around the club and with the fans ... you can sense it," Kotevski said.

United will fly the flag for the region in the Waratah Cup after NSW Premier League heavyweights Bonnyrigg shaded the South Coast Wolves 1-0 at Terry Reserve.

United will turn their attention to the IPL blockbuster against the Fury at Dandaloo Sports Ground on Sunday.

Meanwhile, Sydney FC will consolidate their presence in the Illawarra when they send four players to conduct a clinic in the region on June 12.