SYDNEY - A superbly taken goal by Fabian Barbiero gave Adelaide United a 1-0 victory over Queensland on Saturday and a place in next weekend's A-League grand final against Melbourne. Barbiero broke the deadlock in the 25th minute when he rammed a half-volley from the edge of the box into the corner of the net. The victory not only ensured Adelaide a place in next week's championship decider in Melbourne, it also gave them a place in next season's lucrative Asian Champions Cup. The result capped a remarkable turnaround for the club after they were thrashed 6-0 over two legs by Melbourne, prompting coach Aurelio Vidmar to launch an astonishing verbal attack on the club and the South Australian capital city, which he later retracted. "It was a great response after what's happened over the last couple of weeks," a more diplomatic Vidmar told reporters on Saturday. "Our performances have been certainly well below par and I thought tonight was a good sign of what we've done for the majority of the season."