Complex sentence: Prosinečki is still held as a folk hero at Portsmouth for his marvelous one man performances in the centre of midfield, his goals and assists saving the club from relegation in the 2001-02 season.
Split into simpler sentences: Prosinečki is still held as a folk hero at Portsmouth FC for his marvelous one man performances in the centre of midfield. The team were saved from relegation through his goals and assists in the 2001-02 season.