Italy's Jannik Sinner celebrates as he won the quarterfinal match of the French Tennis Open against Kazakhstan's Alexander Bublik at the Roland-Garros stadium in Paris.

Winner Italy's Jannik Sinner, right, and Kazakhstan's Alexander Bublik shake hands after their quarterfinal match of the French Tennis Open at the Roland-Garros stadium in Paris.

A young supporter of Italy's Jannik Sinner reacts as he presented his towel and signed the banner after the quarterfinal match of the French Tennis Open against Kazakhstan's Alexander Bublik at the Roland-Garros stadium in Paris.

Italy's Jannik Sinner plays a shot against Kazakhstan's Alexander Bublik during their quarterfinal match of the French Tennis Open at the Roland-Garros stadium in Paris.

Italy's Jannik Sinner serves against Kazakhstan's Alexander Bublik during their quarterfinal match of the French Tennis Open at the Roland-Garros stadium in Paris.

A young supporter of Italy's Jannik Sinner holds a banner as he won the quarterfinal match of the French Tennis Open against Kazakhstan's Alexander Bublik at the Roland-Garros stadium in Paris.

Kazakhstan's Alexander Bublik plays a shot against Italy's Jannik Sinner during their quarterfinal match of the French Tennis Open at the Roland-Garros stadium in Paris.

Kazakhstan's Alexander Bublik serves against Italy's Jannik Sinner during their quarterfinal match of the French Tennis Open at the Roland-Garros stadium in Paris.

Italy's Jannik Sinner plays a shot against Kazakhstan's Alexander Bublik during their quarterfinal match of the French Tennis Open at the Roland-Garros stadium in Paris.

Kazakhstan's Alexander Bublik serves against Italy's Jannik Sinner during their quarterfinal match of the French Tennis Open at the Roland-Garros stadium in Paris.