Complex sentence: All footballers in the school were set back by a decision to remove football from the list of playing sports.It was a biased decision by the principal and caused great sorrow to several football fans in the school.
Split into simpler sentences: All footballers in the school were set back by a decision to remove football from the list of playing sports. The boys' basketball team managed to reach the quarterfinals in the same tournament.It was a biased decision by the principal and caused great sorrow to several football fans in the school.