Complex sentence: The following season, Thompson appeared in all of the Bruins' 44 games once more, posting three shutouts and a 2.19 goals-against average, as the league changed its rules on forward passing, which resulted in a sharp increase in goalscoring.
Split into simpler sentences: The following season, Thompson again appeared in all of the Bruins' 44 games, posting three shutouts and a 2.19 goals-against average. The league changed its rules on forward passing, which resulted in a sharp increase in goalscoring.