Ni Oṣu Kẹwa 2010, Boateng n ṣiṣẹ pẹlu Portsmouth FC ni idiwọ FA Cup lodi si Chelsea, nigbati o ba ṣẹgun Michael Ballack, olori ogun ti orilẹ-ede German. 
Ni Osu Kewa 2010, Boateng n sise pelu Portsmouth FC ni idiwo FA Cup lodi si Chelsea, nigbati o ba segun Michael Ballack, olori ogun ti orile-ede German. 