Born in Winfield, Illinois, Keller was raised in Naperville where she attended Waubonsie Valley High School and played for the women's soccer team where her mother was the head coach.

[1] Keller attended University of North Carolina from 1993 to 1996 where she played for the Tar Heels led by national team coach, Anson Dorrance.

[1] In 1998, Keller and her Tar Heel teammate Melissa Jennings filed a sexual harassment lawsuit against Dorrance that ended ten years later in a settlement.

[6] She received a letter of intent from Women's United Soccer Association, but did not join the new league because of Dorrance's involvement in it.

[8] She was cut from the team before the 1999 FIFA Women's World Cup and unsuccessfully took legal action to be reinstated, suggesting her exclusion by coach Tony DiCicco had been a retaliation for the Dorrance lawsuit.