<page_title> List of tennis tournaments </page_title> <section_title> ATP Challenger Tour tournaments </section_title> <table> <cell> AON Open Challenger <col_header> Competition </col_header> </cell> <cell> 2003 <col_header> Year debut </col_header> </cell> <cell> Italy Genoa <col_header> Host </col_header> </cell> </table>
In 2003, The AON Open Challenger is a tennis tournament held in Genoa, Italy.