Sofia Kenin is taking the Australian Open and world by storm this year. The 21-year-old is into her first Grand Slam final after an upset of world No. 1 Ashleigh Barty on Thursday.

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If you didn't know it already, the American has been around the tennis scene for a long, long time. As her wins kept coming, so did throwback videos like these:

And this one, which Andy Roddick himself noticed:

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Kenin's attention is in high demand, but her friend and doubles partner Bethanie Mattek-Sands caught up with her in the locker room.

Fans get to see Kenin react in real time to Roddick's tweet:

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Discuss her tendency to burst into happy tears:

And make plans for a big purchase at Cartier:

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Kenin and Mattek-Sands lost in the third round of doubles, but Mattek-Sands is in the semifinals of the mixed event with Jamie Murray. Kenin will face Garbine Muguruza for the title on Saturday.