In certain manufacturing processes such as sintering or additive manufacturing, porosity remains in the components. These processes are of great interest due to their significant design freedom, making them suitable for various applications. In certain instances, components are also exposed to tribological stresses, making a comprehensive investigation of the impact of pores on tribological behaviour crucial, given our limited understanding of the extent of this influence. To explore the impact of porosity on the tribological behaviour of copper components, we used Field Assisted Sintering Technology to fabricate polycrystalline copper samples with varying pore densities and pore sizes. To assess the influence of pore size and density, tribological experiments were conducted with varying cycle numbers, allowing the attribution of failure-critical microstructure development to the cycle. This study contributes valuable insights into the relationship between porosity and tribological behaviour, providing essential knowledge for understanding the performance of copper components under tribological loading.