By Ian Ransom MELBOURNE, Aug 25 (Reuters) - A revived Ash Barty has banished her post-Wimbledon blues and heads to the U.S. Open seeking a third Grand Slam crown to cap a sparkling summer. After the high of winning her first Wimbledon title, which fulfilled a childhood dream, the world number one crashed out of the Tokyo Olympic singles in exhaustion last month. But the no-nonsense Australian is not one for wallowing. After claiming a mixed doubles bronze for her country, her return to American hardcourts has the competitive fires roaring once again. "Post-Wimbledon I was completely depleted," the 25-year-old said after winning the Western & Southern Open on Sunday. "It was my biggest goal, my biggest dream was to win that one tournament, and it was almost after that I was just a bit numb and I didn't really know what to feel," she said.