Mastandrea was born in Evergreen Park, Ill., on December 9, 1987. She is the daughter of Pete and Tina Mastandrea and is the sister of Peter and Annie. Her father Pete played football and baseball at Illinois Benedictine, her brother Peter played football at Dayton and her sister Annie is currently a member of the Purdue volleyball team. Says her athletic inspiration are her brother and sister. Mastandrea is a public relations major.