فدرر به آلکاراز و سینر توصیه "طول عمر" می کند - "جزئیات بسیار زیادی وجود دارد!"

Federer gives 'longevity' advice to Alcaraz and Sinner - 'There are so many details!'

Roger Federer explains the challenges of longevity within tennis, as he takes a specific look at Carlos Alcaraz and Jannik Sinner.