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Keystone
Carlos Alcaraz, the world No. 3, loses 3:6, 6:3, 4:6 to the Czech Jiri Lehecka in the quarter-finals of the ATP 500 tournament in Doha.
Lehecka, who had won the tournament in Brisbane earlier this year and is ranked 25th in the world, achieved the first victory of his career against a member of the top three. The 23-year-old ended the run of seven successive victories for Alcaraz, who had triumphed at the tournament in Rotterdam at the beginning of February.