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 USA earlier Friday.
Shapovalov, who beat fellow young gun Frances Tiafoe 6-7 (5/7), 6-4, 6-2 to reach his third ATP Masters semi-final, grew up idolising and studying the 20 time Slam-winning Swiss legend who once again rolled back the years with a sublime show at Hard Rock Stadium.
Federer leads the head-to-head against Anderson 5-1, the loss coming past year in the Wimbledon quarterfinals - Anderson winning 13-11 in the fifth set.
Auger-Aliassime missed a great chance to win the opening set after notching the first break of the match. "He's one of the best servers in the world".
"I think I did the best that I could", Auger-Aliassime said.
"So from that standpoint, I know what I'm about to expect tomorrow".
Isner gained the early mini-break in the second set tiebreak and remained accurate behind his big serve to reach the final.
However, Anderson's revival was short-lived, Federer taking his sixth break point of a 14-minute ninth game before closing out victory.More news: Pelosi: Trump, GOP Are 'Afraid' of 'Professional, Patriotic' Adam Schiff
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Federer and Medvedev split the first eight games, and then things turned quickly.
"Holding at the end of the first set was very important but in the second I played well and really went for my shots", added Federer who won 81% of points on his first serve and finished the match on 85%.
Meanwhile, defending champion John Isner powered his way to the semi-finals as Roberto Bautista Agut, who sent world No. 1 Novak Djokovic crashing out in the previous round, was seen off 7-6 (7-1), 7-6 (7-5).
Isner will face Canadian teen sensation Felix Auger-Aliassime in the last four.
Auger-Aliassime, 18, became the youngest-ever Miami semi-finalist after seeing off world No. 13 Borna Coric 7-6 (7/3) 6-2. It was quite easy to be honest, I was successful in soccer, but it doesn't go at the pace as tennis goes, soccer takes many more years. They didn't begin play until 2:08, and the delays were just getting started.
In the second set when leading 5-3, Auger-Aliassime fought off one break point before missing a swinging volley, putting the American back on serve.
On the other hand, Simona Halep's dream of reclaiming the number one ranking will need to wait. "It's more important to finish the year in that position", said the number two seed. "I'm very, very happy".
Their match finally resumed and Barty, the 12 seed and a former cricket player, advanced to Saturday's final with a 6-3, 6-3 win.