
Chocolate-loving Dominic Stricker caused a major upset at the US Open by knocking out seventh seed Stefanos Tsitsipas.
The 21-year-old qualifier from Switzerland, ranked 128 in the world, stunned two-time grand slam finalist Tsitsipas with 7-5 6-7 (2) 6-7 (5) 7-6 (6) 6-3 victory to reach the third round.