By Trevor Stynes TURIN, Italy (Reuters) -South African flanker Siya Kolisi thoroughly enjoyed his Saturday in Turin as he captained his side to a win over Italy, then delighted tennis fans at the ATP Finals by dancing in the stands during Carlos Alcaraz's semi-final victory.

Boris Becker believes Germany's top player Alexander Zverev exited early at the ATP Finals in part due to a "mental block. " Zverev lost to Canada's Felix Auger-Aliassime 4-6, 6-7 (4-7) on Friday and missed out on a possible semi-final against Spanish world number one Carlos Alcaraz.

Felix Auger-Aliassime has beaten Alexander Zverev to secure the last semifinal spot in the ATP Finals in Turin.

The Canadian reflected on a “tough couple of years” after reaching this year's U.S. Open semifinals. Now he is climbing back.

Auger-Aliassime appeared to deal with the nerves better than Zverev, especially in the second set, although he wasted three set points in the opener, before taking it on his fourth.

Results and schedule as Alcaraz and Sinner battle for year-end prize - Alcaraz and Sinner begin their bid for the year-end No 1 as the ATP Finals returns in Turin

The tennis schedule has come under heavy criticism from top stars like Carlos Alcaraz and Alexander Zverev in recent months. The complicated topic has now seen ATP Chairman Andrea Gaudenzi shed new light on the growing issue,

Two spectators died from cardiac arrests at the ATP Finals in Turin, Italy on Monday, the Italian Tennis Federation and the ATP said.