Fourth seed Stefanos Tsitsipas was knocked out of the US Open in the first round on Monday, defeated by Colombian qualifier Daniel Elahi Galan on a dramatic ninth match point.
Galan, ranked 94 in the world, won 6-0, 6-1, 3-6, 7-5 as Tsitsipas's miserable record in New York continued with the Greek having never got past the third round.
