Result: John Isner edges past James Blake

Result: Isner edges past Blake
© AP Photos
Top seed John Isner is through to the semi-finals at the Atlanta Open by beating James Blake in straight sets.

John Isner has secured his place in the semi-finals of the Atlanta Open with a straight-sets win over James Blake.

The top seed won both sets in tie-breaks during a close match against his compatriot.

Blake looked like getting back into the match at the start of the second set, having broken Isner early to take a 3-0 lead.

However, the world number 22 was able to get the break back to level the set, sending it to another tie-break.

Having been comfortably beaten in the first, Blake fought hard to edge ahead, but Isner's big serve gave him the advantage, allowing him to wrap up the match in under 90 minutes.

Isner will face Australian Lleyton Hewitt in the last four.

Australia's Lleyton Hewitt celebrates defeating Switzerland's Stanislas Wawrinka during their first round match at Wimbledon on June 24, 2013
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