When Martina Hingis was involved in controversy with Richard, Venus and Serena Williams at 1999 US Open

Martina Hingis was involved in a verbal spat with Venus Williams, Serena Williams and their father Richard during the 1999 US Open. Richard had predicted that his daughters would make the finals at Flushing Meadows and compete against each other for the title. Martina was the World No. 1 at the time and had already lifted five Grand Slam titles. Serea suggested that Martin lacked formal education.

"They always have a big mouth. He always has his comments. It's fun because I'm better than them so far. I am the No. 1, not them."

Richard asked Martina Hingis why she beat his girl at 1999 US Open.

Martina Hingis was involved in a controversy with Richard, Venus and Serena Williams at 1999 US Open. Sereana had said that Martina speaks her mind.

Martina Hingis was involved in a controversy with Richard, Venus and Serena Williams at 1999 US Open.

"I never missed school. I was always happy about the thing I'm doing right now. The money is not too bad either.

Martina Hingis signed an autograph on a t-shirt for Richard Williams during the 1999 US Open. Hingsis defeated Venus Williams in the semifinals but lost to Serena Williams who won the title.

Martina Hingis was involved in controversy with Richard, Venus and Serena Williams at 1999 US Open.