Sergiusz Prusak (born 1 May 1979) is a Polish footballer (Goalkeeper) who is currently playing for Górnik Leczna.On 26 February 2015, he was fined 2000zl for giving his support to Zawisza fans who are in conflict with their chairman when Górnik played Zawisza, through wearing a t-shirt with the slogan "Zawisza is a fans club" (Zawisza to klub kiboli)As he was born in Pleszew, Greater Poland, he frequently reiterates that privately he is a fan of Lech Poznan, and even attends away games when he can.