 Musi wa 10 Chikunguru 2013, Papastathopoulos akaita mutambo wake wekutanga weDortmund mumutambo wekutanga-mwaka wekushamwaridzana neSwitzerland kirabhu Basel kuSt. Jakob-Park, pamwe nevamwe vatambi veBVB Pierre-Emerick Aubameyang naHenrikh Mkhitaryan. Musi wa 27 Chikunguru, akahwina mukombe wake wekutanga nekirabhu mushure mekupinda mumutambo semutsivi mukukunda 4 × 2 pamusoro peBayern Munich ye2013 DFL-Supercup. Musi wa 1 Mbudzi 2013, akarova chibodzwa chake chekutanga kuDortmund mukukunda 6-1 pamusoro peVfB Stuttgart muBundesliga. 