Jack Sock downs John Isner in Houston

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By Euronews
Jack Sock downs John Isner in Houston

America’s Jack Sock held his nerve to edge out fellow countryman John Isner in the semi-finals of the US Clay Court Championships in Houston.

The defending champion, who had lost four of their previous six meetings, needed a tie-break to clinch the first set before finding his range in the second.

Sock eventually prevailed 7-6 6-3 and will next lock horns with Juan Monaco in the showpiece match.