A ball net structure arranged to be portable, collapsible, and provide the required structural support to receive or capture a projectile, such as but not limited to a soccer ball or baseball. The ball net structure comprises a support portion, first and second extensions, a first bracket pivotally coupling the first extension to the support portion, a second bracket pivotally coupling the second extension to the support portion, first and second flexible rods removably coupled to the support portion, and a net received by at least the first and second extensions and received by at least the first and second flexible rods. The net is configured to bend the first and second flexible rods from a linear state to an arcuate state, such that a net tension holds the net upright.