Six things to know about Daniel Altmaier - Roland-Garros - The 2023 Roland-Garros Tournament official site
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French Open day five: Sinner stunned by Altmaier, Gauff advances – as it happened | French Open 2023 | The Guardian
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No. 12 Zverev defeats compatriot Altmaier at 2023 US Open - Official Site of the 2023 US Open Tennis Championships - A USTA Event
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French Open: Daniel Altmaier is Germany and Sky's rising star after his stunning run at Roland Garros | Tennis News | Sky Sports
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Sinner, Korda, Altmaier make French Open history for this reason - Tennis Tonic - News, Predictions, H2H, Live Scores, stats
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Sky Scholar and German tennis star Daniel Altmaier enjoys Boris Becker backing | Tennis News | Sky Sports
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