The Brazilian picked up an injury during the World Cup but is on track to recover in time for the new La Liga season.
The Brazilian fractured his back during the World Cup quarterfinal victory over Colombia and sat out the losses to Germany and Netherlands in the semifinal and third-place match.
But he is hoping to return to Barcelona for preseason Aug. 5 before featuring in the annual Gamper game at Camp Nou.
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"Im slowly recovering from the injury. I'll get to Barcelona 100 percent," he told reporters at a promotional event in Brazil. "I want to have a good season and I'm looking forward to helping my teammates get good results. I also want to contribute to the Brazil team.
"I'm confident of playing in the Gamper game on Aug. 18."
Neymar has since arrived in Japan to continue his recovery and work on personal commerical requirements.
The Brazil international signed autographs for dozens of fans after his arrival in Tokyo prior to the news conference during which his latest commercial venture was confirmed.