Tennis superstar Serena Williams attended a society event yesterday in New York. And almost as soon as the images from the event leaked onto social media - her fans began blasting her.

Serena and her sister Venus attended the Citi Taste of Tennis NYC. The event was held at the ultra exclusive Cipriani 42nd Street restaurant.

And while Venus looked cute in a form fitting gown, Serena chose to dress down for the event.

Folks all over social media are making extremely critical comments about Serena, and her choice of hair for the event. Many of Serena's fans believe that the tennis star - who is worth more than $100M - should have worn a more expensive looking wig.

Here are pics of Venus and her sister from the event:

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Serena Williams is considered the all time greatest woman's tennis player in history.

The Women's Tennis Association (WTA) ranked her world No. 1 in singles on eight separate occasions between 2002 and 2017. She reached the No. 1 ranking for the first time on July 8, 2002. On her sixth occasion, she held the ranking for 186 consecutive weeks, tying the record set by Steffi Graf. 

In total, she has been No. 1 for 319 weeks, which ranks third in the Open Era among female players behind Graf and Martina Navratilova.