Watch the first semi-final from the Miami Open as defending champion and No. 7 seed John Isner faced teenage Canadian qualifier Felix Auger-Aliassime at the Hard Rock Stadium.
John Isner v Felix Auger-Aliassime
Replay
Miami
2019SFSF
Watch the first semi-final from the Miami Open as defending champion and No. 7 seed John Isner faced teenage Canadian qualifier Felix Auger-Aliassime at the Hard Rock Stadium.
