Pavel Zika told Czech newspaper Pravo that another ten clubs had asked about the 26-year-old's availability, but that the Chelsea star was happy to stay at Stamford Bridge.
He said: "I know quite a large European club is ready to pay 40 million euros for Petr Cech. It is an important sum for a goalkeeper."
But the agent also revealed that he plans to re-negotiate Cech's contract with Chelsea officials over the summer and is looking for a pay rise for his man.
"At the end of the season, we will consider the current contract of Petr and see whether we can improve it," he said.