Colombian qualifier Daniel Elahi Galan caused a major upset at the US Open on Tuesday, showing fourth-seeded Stefanos Tsitsipas the exit door with a hard-fought 6-0, 6-1, 3-6, 7-5 victory against the Greek player on Tuesday.

With the help of 41 winners, the World No.94 reached the second round at Flushing Meadows after a two hours and 48 minutes slugfest on his main draw debut at  the season’s final major. This was the 26-year-old Colombian’s biggest win of his career.