Serena Williams on Roger Federer: American tennis player Serena Williams welcomed Roger Federer to the retirement club.

Swiss tennis player and 20 Grand Slam winner Roger Federer has announced his retirement.

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Apart from his fans from the retirement of Roger Federer, veteran players are also writing emotional posts.

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Rafael Nadal also shared an emotional post and wished Roger Federer for his retirement.

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American tennis player Serena Williams recently announced her retirement after the US Open.

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Williams said "I wanted to find the perfect way to say this, as you so eloquently put this game to rest — perfectly done, just like your career,"

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Recently retired Serena Williams also welcomed Roger Federer to the retirement club.

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"I applaud you and look forward to all that you do in the future," he wrote.

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Roger Federer is counted among the greatest players of all time in the tennis world.

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Roger Federer has reached the finals of all four Grand Slams three times in a row, becoming the first player to do so.

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He will play his last tournament, the Laver Cup to be held in England on 23 September.

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