Serena Williams gets unexpected gift from Gai WaterhouseHANDOUT Serena Williams and her new hat after victory over Johanna Konta. It's not rare that players of Serena Williams' calibre will be handed items to sign by fans after grand slam victories. Little did she know, that woman was none other than world-renowned horse trainer Gai Waterhouse. "Well, she's a really famous horse trainer, obviously. READ MORE:* Dimitrov into last four* Serena powers into last fourAsked if Williams knew that it was Waterhouse giving her the hat, she responded:"Not at the time.

Source: Stuff January 25, 2017 06:57 UTC