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Marta Kostyuk became the youngest player to reach the third round of a Grand Slam since 1997! The 15-year-old beat Olivia Rogowska at #AusOpen. Read 🗞 https://t.co/2igP315HfL 📻 Catch up with Tennis Breakfast on @5liveSport Extra from 07:00 (GMT) https://t.co/sJj3vF2gwc — PolitiTweet.org