She's still going very strong at No.16 in the world, but by virtue of celebrating her 20th birthday on Wednesday, Sloane Stephens' reign as the No.1 teenager is over. Who's the new teen queen?
WTA Staff

MIAMI, FL, USA - Sloane Stephens was the youngest player in the year-end Top 100 in 2011 and the only teenager in the year-end Top 50 in 2012, and so far in 2013 has been flying the flag for all the teenagers - but she turned 20 on Wednesday, leaving Laura Robson as the new No.1 teenager.

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"It feels pretty good," Robson commented. "Sloane's still ranked a lot higher than me and she's only been not a teenager for a day, so I think she still has that title, but I feel pretty good about it."

Robson is ranked No.43 in the world at the moment and you don't have to go too far down the WTA Rankings to find the No.2-ranked teenager - Kristina Mladenovic is currently No.48 in the world. But Robson isn't just looking over her shoulder at the other teens - she has her eye on everyone.

"I think everyone looks at how everyone's doing. But there are definitely some good younger girls these days - Kristina's doing well, Annika Beck, and Donna Vekic too - there's quite a few of us."

Robson rang in the new honor with a first round win at the Sony Open Tennis on Wednesday, breaking away from 3-all in the third set for a two-hour, one-minute, 62 46 63 victory over Camila Giorgi.

"I've been getting quite nervous in my matches but today I managed to deal with that better and just grind out the win," Robson said. "Also by the end of the match there was this huge storm coming, so I basically tried to finish before it started. I'm really happy I was able to play through the nerves.

"You know when you hear thunder and see huge rain drops falling on the court that you don't have that much time. About 30 seconds after we finished it started pouring - we were lucky to finish."

A day earlier, Heather Watson lost her first round match from 61 41 up - Robson was asked about her fellow Brit's difficult defeat and gave some very encouraging words. "Heather's not the only one to lose from a set and 4-1 up - I did it at Indian Wells so it happens to everyone," she said. "You just have to deal with it. I think Heather's a great player so she'll definitely be able to bounce back from that."

Next up for Robson is her first round doubles match - she is a wildcard pairing with former World No.1 doubles player Lisa Raymond here, facing No.6 seeds Raquel Kops-Jones and Abigail Spears.

"Lisa was supposed to be playing with Sam Stosur, who unfortunately hurt her calf. Lisa called me up and was like, 'Do you want to play?' We had to get a wildcard, so it's very nice of the tournament to give us one, and I'm very excited - she's obviously an amazing doubles player. We practiced a bit a few days ago together, so we have a feel of each other's games, and I think we're both excited."

Then Friday, Robson will play her second round singles match against the No.32 seed, Alizé Cornet.

Sloane Stephens, Laura Robson