Jannik Sinner doesn't yet feel ready to return to the professional tennis circuit. After his victory at Wimbledon in July, the world number one suspended his competitive activity for over two months and prefers not to rush his return. His withdrawal from Beijing, confirmed by Sinner himself, suggests that his likely return date will be between the Vienna and Paris tournaments, events he won the previous season. An early return to Shanghai appears unlikely due to the challenging weather conditions and the reduced impact on the scorecard defense highlighted in the…