Complex sentence: Clarke came on as a substitute to score a brace on her debut as the Football Ferns thrashed Samoa 15-0 in a World Cup qualifier on 7 April 2003 and finished her international career with 13 caps and 2 goals to her credit.
Split into simpler sentences: Clarke came on as a substitute to score a brace on her debut as the Football Ferns thrashed Samoa 15--0 in a World Cup qualifier on 7 April 2003. She finished her international career with 13 caps and two goals to her credit.