O'Connor played for clubs including Arsenal and Long Island Lady Riders and represented the Republic of Ireland at senior international level.
[4] In 1999 an American soccer coach named JoAnne Wagner spotted O'Connor and signed her to Hofstra University.
[2] In 2004 O'Connor signed for Arsenal Ladies, making her debut in an FA Women's Community Shield defeat by Charlton Athletic.
[7] The following season she switched to Women's Premier Soccer League (WPSL) outfit Long Island Fury.
[10] O'Connor represented Republic of Ireland at youth level,[4] then played for the senior team in the qualifying campaigns for the 2003 and 2007 FIFA Women's World Cups.