Edmund won the first set tie-break but Harrison rallied to win the remaining two sets to book a date with fellow American John Isner in Sunday's final after the 6-7 (7/5) 6-3 6-4 win.

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Edmund broke Harrison as he was serving for the first set and carried that momentum into the tie-break to take the set.
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Ryan Harrison reacts after defeating Kyle Edmund of Great Britain during the BB&T Atlanta Open at Atlantic Station on July 29, 2017 in Atlanta, Georgia.

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But Harrison recovered and raced into a 4-1 lead in the second set to level the match.
Harrison won eight of the final nine points of the match, breaking Edmund to love at 4-4 and secured victory when the Brity drove a forehand wide.
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