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İstanbul Cup 2021 - Đơn İstanbul Cup 2022 - Đơn İstanbul Cup 2021 İstanbul Cup 2022 İstanbul Başakşehir F.K. İstanbul Cup 2021 - Đôi İstanbul Cup 2022 - Đôi İstanbul İstanbuldere, Sapanca İstanbulboğazı, PerşembeTài liệu tham khảo
WikiPedia: İstanbul_Cup_2021_-_Đơn http://wtafiles.wtatennis.com/pdf/draws/2021/2020/... http://wtafiles.wtatennis.com/pdf/draws/2021/2020/... https://www.wtatennis.com/news/1827878/tig-seals-i...