Heather Watson showed off her new aggressive streak as she reached the second round of the French Open for the second successive year but there was more disappointment at Roland Garros for Anne Keothavong.
Watson, who once again came through qualifying, was hugely impressive in defeating experienced Russian Elena Vesnina 6-2 6-4 on Court 6, which was also the venue for Keothavong's 6-1 6-2 loss to Hungary's Melinda Czink.
The Londoner became the third British woman to lose in the first round, following Elena Baltacha and Laura Robson out and leaving Watson to fly the flag in the second round.
The 20-year-old looks at home on clay, her consistent strokes and superb movement a great match with the surface, but one of the most impressive things about her game today was her serving.
The concern about Watson has always been a lack of weapons, but she has tweaked her service action and the reward has been 18 aces in her four matches so far and only one point dropped on serve in the first set today.
Watson said: "I've been working on my game to become a lot more aggressive, and just add to my game, because I have the good defensive skills and I can move well.
"So we've been working on my serve quite a bit, trying to get a lot more power and accuracy on it. It's working."
Watson broke into the top 100 last year but her progress stalled in the first few months of this season when, after coming back too soon from an ankle problem, she lost her form and confidence.
The turning point came in Miami, when she reached the third round of a big WTA Tour event by beating two top-50 players in Sorana Cirstea and Lucie Safarova.
Watson said: "I'm very happy. I haven't had the best year so far. Then suddenly in Miami I started to play a lot better and got my two biggest wins.
"So I've just carried on working hard. I knew I had a lot of points here to defend, but I just didn't want to focus on that, just take each round at a time. That's what I've done. I've ended up playing really well.
"I absolutely love the courts here. I think they really suit my game. The atmosphere is always great, and I always seem to have quite a bit of support here."
Vesnina, ranked 27 places higher than Watson at 83 in the world, reached the final of the WTA Tour event in Budapest on clay a month ago but, although she fought back from 4-2 down in the second set, she was second best throughout.
Watson now plays 25th seed Julia Goerges of Germany, and she will take a lot of confidence onto the court.
The 20-year-old said: "The past few years she's really climbed the rankings and done very well. But I've got nothing to lose. I'm going to go out there and play well and use that to my advantage, being the underdog, and just give it my best."
Keothavong had never won a match in the main draw at Roland Garros in three previous attempts and went into the clash against a player ranked 35 places lower than her without a win on clay all year.
She never got going, losing the first five games to Czink, and, even though she improved in the second set, a turnaround never looked on the cards.
Keothavong revealed her build-up had been affected by injury and health issues, which she declined to elaborate on, and she said: "It was pretty obvious I didn't play very well out there.
"The start of any match is always important and I just never felt like I ever got myself going. My footwork was poor and nothing seemed to flow.
"This clay-court season hasn't been ideal for me, I've had quite a few things to deal with and I haven't been able to practise as much as I would have liked this past week. But I don't want to make excuses, today I just wasn't very good."
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