Porto striker Hulk, who continues to be linked with a move to Chelsea, admits his future at the Estadio do Dragao remains uncertain.
Chelsea are still being linked with the Brazil international as they look to continue their summer spending and agent Teodoro Fonseca has already confirmed he is aware of the Blues' interest.
Hulk has a massive €100million buy-out clause in his contract and it is believed Porto are unwilling to sell for less than €40m.
Fonseca at the weekend admitted Porto are keen to keep hold of the forward unless their valuation is met, as they "want to build a team around him that is capable of winning the Champions League."
But Hulk has previously admitted he is interested in a move to Chelsea, and speaking to reporters at Brazil's training camp in London ahead of the London 2012 Olympics, said: "My future is in the hands of God.
"When it comes to transfers, I leave everything with my agent.
"I am focused on the national team."
The 25-year-old also admitted he is hoping to help Brazil to win their first ever gold medal in the Olympic football.
"Who would not like to be a champion? We know about Brazil's history, that would be something unprecedented," he added.
"We have a group of players who are very united. We will not waver, we are all very focused."
Fonseca recently stated Paris Saint-Germain are also keen on signing his client.