A device for storing at least one game ball under pressure, the device having a container with a leak-tight cover and a casing arranged around, and at a distance from, the container, and a pump for pumping ambient air into the container. The pump can include an annular piston arranged between the container and the casing, a handle connected to the piston for moving the piston translationally along the container, a first non-return valve for admitting ambient air into a compression chamber between the casing and the container, and a second non-return valve, arranged between the compression chamber and an internal volume of the container, for transferring air from the compression chamber to the container.

A device for storing at least one game ball under pressure, the device having a container with a leak-tight cover and a casing arranged around, and at a distance from, the container, and a pump for pumping ambient air into the container. The pump can include an annular piston arranged between the container and the casing, a handle connected to the piston for moving the piston translationally along the container, a first non-return valve for admitting ambient air into a compression chamber between the casing and the container, and a second non-return valve, arranged between the compression chamber and an internal volume of the container, for transferring air from the compression chamber to the container.