Career
Liggan resides in Málaga, Spain, but plays tennis for Ireland. Liggan has made two Grand Slam doubles main draw appearances. She reached the 2003 United States Open second round and the 2004 Wimbledon Championships second round.
Liggan has had several Women's Tennis Association tour main draw appearances.
However, she has never reached a quarterfinal. Due to nagging injuries, Kelly retired in 2010.
Doubles (1)
Singles (8) (4-4).