JOLIET, Ill. --- A real family rivalry will ensue when the University of St. Francis women’s track and field team begins its 2011-2012 season this coming winter after it was announced that Lincoln-Way East High School product Sarah Saffran (Mokena, Ill.) has signed a letter of intent to attend the Joliet-based school.  She joins her sister, Lauren, a soon-to-be sophomore, on the squad with both individuals competing as pole vaulters.