Rockingham City have been prematurely knocked out of the FFA Cup defeated by Gosnells City 2-1.
Luke Collins and Dylan Rogers combined to hit the scoreboard for the home side but couldn't convert opportunities to find another.
Coach Goran Stajic said it was a disappointing result.
"Disappointing is probably an understatement, they came out from the start and physically outmuscled out."
Stajic was in no way surprised that second division side Gosnells had cause the upset result.
"The gap is not that great, they are an experienced side, what we lack at the moment is a bit of a killer instinct and they had that yesterday more that us."
Rockingham City are back to NPL action this weekend hosting Perth Glory at Lark Hill.