The successor to Jannik Sinner is being sought in Milan these days: The South Tyrolean won the last edition of the #NextGn Finals in 2019, this year Sinner will not defend his title. Carlos Alcaraz indicated in the second game on Tuesday that he could be the first contender for the 2021 title. Because the 18-year-old Spaniard won against Holger Vitus Nodskov Rune of the same age with 4: 3 (6), 4: 2 and 4: 0.

Rune won the title at the ATP Challenger tournament in Bergamo on Sunday, and Alcaraz was at the ATP Masters 1000 event in Paris-Bercy last week. And there ended Jannik Sinner's hopes of qualifying for the ATP Finals in Turin. In Turin, Alcaraz pulled the reins a little tighter after an even and playfully strong first set, leaving Rune no chance at the end of the 75 minutes of play.

Can Nakashima claim Alcaraz?

Brandon Nakashima also got off to a successful start. The American won against Juan Manuel Cerundolo from Argentina 4: 1, 3: 4 (3), 4: 1 and 4: 0. Nakashima appears to be Alcaraz's first challenger in Group A.

Group B will also pick up speed on Tuesday. First Sebastian Korda will meet the French Hugo Gaston, the last match of the day will be played by local hero Lorenzo Musetti and the second Argentinian in the eighth field, Sebastian Baez.