Popyrin's Qatar Open bid ended after marathon tiebreak

Popyrin loses
Alexei Popyrin has been beaten in the semi-final of the Qatar Open in Doha by Karen Khachanov. -AAP Image

Alexei Popyrin's bid to reach his first ATP final of the year has been sunk by Russian Karen Khachanov, who went on to knock out the Australian in the Qatar Open semis after prevailing in a dramatic 26-point first-set tiebreak.

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