Complex sentence: He went back to Perspolis but due to his rivalry with Abedzadeh, Nakisa decided to leave the club for Pas Tehran where played untill August 2006 when he quit after having an arguement with Pas Tehran Officials.
Split into simpler sentences: He went back to Perspolis but due to his rivalry with Abedzadeh, Nakisa decided to leave the club for Pas Tehran. He played there untill August 2006, when he quit after having an arguement with Pas Tehran officials.