Jannik Sinner stopped German qualifier Yannick Hanfmann 7-5, 6-3 to launch his Halle defense scoring his sixth straight win at the OWL Arena.
Frech handed the 18-year-old a bagel in the third set to advance.
Tennis historian Raymond Lee digs much deeper than Grand Slam titles won to identify the GOAT candidates in Open Era history.
The 23-year-old Canadian was only broken twice all week en route to his first ATP title.
Taylor Fritz rode a near flawless serving performance topping top-seeded Alexander Zverev 6-3, 7-6(0) to win his first title of the season in Stuttgart.
The German reeled off four consecutive Top-20 wins to win the title at Queen's Club.
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