Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_24348134_3 (tournament_winner VARCHAR, regular_season_winner VARCHAR)
### Question:
List the number of tournament winners when iona , siena & niagara won in the regular season.
### Answer:
SELECT COUNT(tournament_winner) FROM table_24348134_3 WHERE regular_season_winner = "Iona , Siena & Niagara"