Women’s top seed Serena Williams says she’s been practising her curtsy should she and Russian opponent Anna Chakvetadze play their second-round match on Centre Court with Queen’s Elizabeth II watching.

“I was going to curtsy today on the court afterwards, but I think I flubbed it,” said the American after an earlier win at Wimbledon.

“So I’m definitely going to work on it a little more. I’m trying to tone down my wrist action.

“But my curtsy is really fun — it’s something that she’ll definitely never forget, if I ever even get a chance to meet her.” Williams, something of tennis royalty in her own right, said that as an American she definitely needs to become au fait on the fine points of royal protocol. “We really don’t do that so much in the United States, so I’m really working hard on it. I’m almost speechless because hopefully I’ll even get to play in front of her.

“She hasn’t been here in how long? 33 years? She’s missed some generations of incredible tennis players. I never realised that the queen would come to the tennis.”

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