John Isner beats Felix Auger Aliassime to reach the Miami Open final


That's the combined age of the two Canadian teens in the men's semifinals - Shapovalov, 19, will face Federer on Friday night, and the 18-year-old Felix Auger-Aliassime will meet defending Miami champion John Isner of the US earlier Friday.

The youngster from Montreal competed confidently in the biggest match of his career but will rue the chances that escaped him after being broken while serving for the first and second set. "I couldn't put a second serve in anymore".

About the Federer match, Shapovalov admitted: "I started off a little bit tight".

The youngest semifinalist in the 35-year history of the tournament, Auger-Aliassime was broken while serving for each of the first two sets, allowing the six-foot-10 American to rally.

"Playing a big server like John is like being in a penalty shootout in soccer, but I enjoy it", said number four seed Federer who coped brilliantly with Kevin Anderson's unsafe serve in the quarter-finals, winning the first set to love.

John Isner takes on Roger Federer in the 2019 Miami Open Men's Final. "I am so happy to be one match away from defending the title". "I think all the Canadian players from the young kids to Denis and Bianca (Andreescu) and I, there is a lot of belief right now, so it's great to see". Failure is clearly the best teacher in the world as after tumbling upon his serves at paramount moments of his semifinal, Felix Auger-Aliassime instantly made a decision to work upon his Achilles heel. The cardio thing I have dealt with since I was eight, so I wasn't scared for my health or anything, I just couldn't believe it happened at that moment.

Auger-Aliassime spent most of his previous season switching between the Challenger and ATP circuit in a bid to build some form and momentum.

They struck during his US Open debut in September (he has never even played at senior Wimbledon) and the match had to be stopped.

Roger Federer completed a match rescheduled for Wednesday, due to rain and defeated No. 13 seed Daniil Medvedev of Russian Federation, 6-4, 6-2.

Despite the disappointment etched all over Auger-Aliassime's face at the end, his run here will give him great confidence moving forward as he, and Shapovalov, aim to prove their Grand Slam credentials. For me, that's exciting because it's like a penalty shootout in (soccer), it's just in tennis. In two clinical tie-breakers, Isner won the match 7-6 (1), 7-6 (5).

There was a repeat in the second set.

'Tennis takes a lot of my time but hanging out with friends, meeting girls, going to the movies - all that stuff I like to do, but obviously tennis is my priority.

The French Open victor will play No. 5 seed Karolina Pliskova for a spot in the final.

"I try to play good tennis every time I'm out there on the court, so that's been my way of thinking and that's how I play my best tennis as well".

"Pretty insane. Everyone is super excited back home", said Auger-Aliassime, who wasn't in the top 100 of the world rankings two months ago and now will climb to No. 33 next week - if not higher.