New Delhi, July 20 -- Badminton legend Saina Nehwal on Monday praised P V Sindhu after her Japan Open Super 750 triumph, saying a champion should never be underestimated.

Nehwal highlighted Sindhu's resilience in overcoming a difficult period marked by injuries and believes the title win will restore her confidence.

She lauded Sindhu's aggressive style and impressive victories over several top players, calling her comeback a testament to her champion mentality.

Sindhu rediscovered her vintage best to capture her maiden Japan Open title, defeating home favourite and world No. 3 Akane Yamaguchi 21-17, 21-17 in the women's singles final of the BWF Super 750 tournament on Sunday.

"You can never write a champion off. I think after winning ...