Stuttgart, Taylor Fritz and Zverev
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First quarter-final, first Top 50 victory: the 17-year-old German is causing a minor sensation on home grass at the BOSS Open.
Top seed and home favourite Alexander Zverev beat Brandon Nakashima 7-5 6-4 to advance to the semi-finals of the Stuttgart Open on Friday while Americans Taylor Fritz and Ben Shelton also reached the last four.
With Roland Garros in the rearview, top players on the ATP Tour are shifting their focus to the grass-court season as they prepare for Wimbledon. Alexander Zverev kicked off his campaign at the BOSS Open in Stuttgart on Thursday with a win over Corentin Moutet.
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