Konstantinos Mitsotaki is the daughter of Angeliki Kanellopoulou and Kostas Sakkari.
Her mother is a Greek former tennis player who competed on the WTA Tour. She reached a career-high ranking of No. 43 in April 1987. During her career, she twice reached the third round of the French Open.
She competed in the Federation Cup multiple times and participated in the tennis demonstration in the 1984 Summer Olympics, reaching the quarterfinals. Another career highlight was reaching the finals of the 1986 Athens Trophy, where she lost to Sylvia Hanika.
Details of her father is unknown however, he was known to be very supportive in his daughter’s career.