Table schema:
CREATE TABLE table_name_57 (fa_cup INTEGER, league VARCHAR, total VARCHAR, fa_trophy VARCHAR)

Question: What is the average number of goals scored in the FA Cup among players that have more than 20 total goals, less than 1 FA Trophy goals, and less than 25 league goals?
SQL: SELECT AVG(fa_cup) FROM table_name_57 WHERE total > 20 AND fa_trophy < 1 AND league < 25