Martina Hingis is a person.
The Grand Slam tournaments , also called majors , are the four most-important annual tennis events . The Laureus World Sports Awards is an annual award ceremony honoring remarkable individuals from the world of sports along with the greatest sporting achievements throughout the year . Martina Hingis . She has won five Grand Slam singles titles , twelve Grand Slam women 's doubles titles , winning a calendar-year doubles Grand Slam in 1998 , and five Grand Slam mixed doubles titles ; for a combined total of twenty-two major titles . An Olympic medal is awarded to successful competitors at one of the Olympic Games .