Complex sentence: As a junior Erin played for St. Michael's Old Scholars but was unable to continue with the sport after the age of 13 as their were no pathways for girls to continue with the sport after that age.
Split into simpler sentences: As a junior Erin played for St. Michael's Old Scholars. However Phillips was unable to continue with the sport after the age of 13 as their were no pathways for girls to continue with the sport after that age.