



Basel's January preparations look shaky after a heavy friendly defeat exposed defensive frailties ahead of crucial Europa League action.
The 4-1 thrashing by Slavia Prague highlighted Basel's vulnerability with multiple players sidelined including Agbonifo and Broschinski. Failed move for striker Gregoritsch adds to transfer window disappointment. Viktoria Plzen clash will test if Basel can tighten up defensively when European competition resumes.