Italy's Jannik Sinner celebrates as he won the semifinal match of the French Tennis Open against Serbia's Novak Djokovic at the Roland-Garros stadium in Paris.

Serbia's Novak Djokovic gestures as he leaves the semifinal match of the French Tennis Open against Italy's Jannik Sinner at the Roland-Garros stadium in Paris.

Serbia's Novak Djokovic leaves the center court Philippe Chatrier after the semifinal match of the French Tennis Open against Italy's Jannik Sinner at the Roland-Garros stadium in Paris.

Winner Italy's Jannik Sinner, right, and Serbia's Novak Djokovic greet each other after their semifinal match of the French Tennis Open at the Roland-Garros stadium in Paris.

Serbia's Novak Djokovic reacts as he plays against Italy's Jannik Sinner during their semifinal match of the French Tennis Open at the Roland-Garros stadium in Paris.

Italy's Jannik Sinner plays a shot against Serbia's Novak Djokovic during their semifinal match of the French Tennis Open at the Roland-Garros stadium in Paris.

Serbia's Novak Djokovic plays a shot against Italy's Jannik Sinner during their semifinal match of the French Tennis Open at the Roland-Garros stadium in Paris.

Italy's Jannik Sinner plays a shot against Serbia's Novak Djokovic during their semifinal match of the French Tennis Open at the Roland-Garros stadium in Paris.

Serbia's Novak Djokovic reacts as he plays against Italy's Jannik Sinner during their semifinal match of the French Tennis Open at the Roland-Garros stadium in Paris.

Italy's Jannik Sinner plays a shot against Serbia's Novak Djokovic during their semifinal match of the French Tennis Open at the Roland-Garros stadium in Paris.