The world number three Rafael Nadal admitted he is unsure if he will take part in the Summer Olympics in Tokyo as the pandemic remains out of control in Japan just a few months away from the start of the competition. Nadal is set to face Italian sensation Jannik Sinner in his opening match of the Italian Open on Tuesday. Sinner reached his first Masters final this year at the Miami Open, won an Australian Open warm up, reached the semifinals of the Barcelona Open last month, and the match with Humbert marked his 20th victory of the year.