Complex sentence: At Perth Glory in 2005 he played a total of six games and was largely disappointing, during the time he spent at the Glory the fans gave McMahon Jr the nickname of "MCJU" in reference to an old episode of The Simpsons.
Split into simpler sentences: At Perth Glory in 2005 he played a total of six games. During his stay with Glory the fans gave him the nickname of "MCJU" in reference to an old episode of The Simpsons.