India's badminton ace and 2016 Rio Olympics silver medallist PV Sindhu says she admires the class and elegance of American tennis legend Serena Williams and Swiss ace Roger Federer, and has great appreciation for Portuguese footballer Cristiano Ronaldo's skills.

"I don't have words, the way he (Ronaldo) plays, the skill, the technique he has is tremendous," Sindhu, who would be looking to change the colour of her medal in Tokyo to gold, told olympics.com. Ronaldo recently won the Golden Boot at Euro 2020, following his five goals and one assist.