Martina Hingis played in North America.
Hingis set a series of `` youngest-ever '' records during the 1990s , including youngest-ever Grand Slam champion and youngest-ever world No. 1 .	Grand Slam	Grand Slam (tennis)
The Grand Slam itinerary consists of the Australian Open in mid January , the French Open in May and June , Wimbledon in June and July , and the US Open in August and September .	Australian Open	Australian Open	French Open	French Open	Wimbledon	The Championships, Wimbledon	US Open	US Open (Tennis)
The Grand Slam tournaments , also called majors , are the four most-important annual tennis events .	tennis	tennis
