| The innovative format for players 21 and under, 
				now in its second year, features shorter sets in which the first 
				player to four games is the winner, with a tiebreaker at 3-3. 
				Tsitsipas credited his father's advice for staying focused in 
				the fast-paced format.
 "I was just more prepared, more ready for what's going to 
				happen," said the 20-year-old Greek. "Every point counts. So, I 
				was more into the match. I was more focused, more in the moment. 
				... I believe if you start playing more and more with these 
				rules, then it's just a matter of time to get used to it."
 
 Russia's Andrey Rublev, a finalist at the inaugural event in 
				2017 and the only player in this year's field to have played in 
				Milan last year, defeated American Taylor Fritz in a five-set 
				thriller -- 4-2, 1-4, 3-4(4), 4-3(2), 4-2. The 21-year-old 
				Russian earned 16 break points in the match, including six in 
				the final set.
 
 American Frances Tiafoe was up two quick sets against Poland's 
				Hubert Hurkacz before finding himself in a tight four-setter. 
				The 20-year-old saved six of the seven break points en route to 
				a 4-1, 4-2, 2-4, 4-3(10) win.
 
 Nineteen-year-old Alex de Minaur of Australia made a strong 
				opening statement in the last match of Tuesday's opening-day 
				play. It took the Aussie just 55 minutes to dispatch Italian 
				wild card Liam Caruana in straight sets, 4-1, 4-1, 4-2.
 
 De Minaur will face Rublev on Wednesday while Tsitsipas will 
				take on Tiafoe. Also in group play Wednesday, Caruana will face 
				Fritz, and Hurkacz will play Munar.
 
 --Field Level Media
 
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