An 18-year-old Canadian sensation, Auger-Aliassime defeated Grigor Dimitrov, Nick Kyrgios, and Stefan Tsitsipas at the Queen’s Club Championships last week before losing to the resurgent Feliciano Lopez in the semifinals. Auger-Aliassimeis a breathtaking talent who is emerging as an heir apparent to the Big Four. He is 6-foot-3, lithe and graceful with a powerful serve, penetrating groundstrokes, speed and agility. He has soared to No. 21 from No. 104 in the rankings since February, but has yet to win a match at a Grand Slam event; he missed the French Open with an injury. After losing to Auger-Aliassime at Queen’s, Tsitsipas said: “There’s not much to come up with when you play against him.