Isner stuns Del Potro to reach Miami final

John Isner produced a blistering Miami Open semi-final display against crowd favourite Juan Martin Del Potro to win 6-1, 7-6 (7/2) and snap the former US Open champion's 15-match winning streak.

It was a phenomenal effort from the American who blasted down 13 aces and took just one hour and 23 minutes to floor Argentina's Del Potro and book his place in Sunday's final.

Isner will meet world number five Alexander Zverev in the final after the German rolled over Spaniard Pablo Carreno Busta 7-6 (7/4), 6-2 in the other semi-final.

"I have played a lot of big matches and not been able to get such a good start but I am playing some of the best tennis I have played in such a long time," Isner said.

"I started the tournament well and I have improved with every game. I am super fresh and ready to go for the final."
- French Open target -
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"I will go home now, eat some barbeque, spend time with friends and not talk about tennis for the next few weeks."