Indian Wells Open: Carlos Alcaraz Sets Up Semi-Final With Jannik Sinner - In Pics

Carlos Alcaraz, of Spain, right, shakes hands with Alexander Zverev, of Germany, after a quarterfinal match, won by Alcaraz, at the BNP Paribas Open tennis tournament in Indian Wells, California.

Alexander Zverev, of Germany, waves to the crowd after losing to Carlos Alcaraz, of Spain, during a quarterfinal match at the BNP Paribas Open tennis tournament in Indian Wells, California.

Alexander Zverev, of Germany, returns to Carlos Alcaraz, of Spain, during a quarterfinal match at the BNP Paribas Open tennis tournament in Indian Wells, California.

Carlos Alcaraz, of Spain, reacts after winning a point against Alexander Zverev, of Germany, during a quarterfinal match at the BNP Paribas Open tennis tournament in Indian Wells, California.

Carlos Alcaraz, of Spain, returns to Alexander Zverev, of Germany, during a quarterfinal match at the BNP Paribas Open tennis tournament in Indian Wells, California.

Carlos Alcaraz, of Spain, reacts as he plays Alexander Zverev, of Germany, during a quarterfinal match at the BNP Paribas Open tennis tournament in Indian Wells, California.

Alexander Zverev, of Germany, returns to Carlos Alcaraz, of Spain, during a quarterfinal match at the BNP Paribas Open tennis tournament in Indian Wells, California.

A beekeeper is high-fived by fans during an interruption in play in a quarterfinal match between Carlos Alcaraz, of Spain, and Alexander Zverev, of Germany, at the BNP Paribas Open tennis tournament in Indian Wells, California.

A beekeeper sprays a bee during an interruption I play in a quarterfinal match between Carlos Alcaraz, of Spain, and Alexander Zverev, of Germany, at the BNP Paribas Open tennis tournament in Indian Wells, California.

Carlos Alcaraz, of Spain, swats away a bee as he plays Alexander Zverev, of Germany, during a quarterfinal match at the BNP Paribas Open tennis tournament in Indian Wells, California.