On December 17, 2021, the Badminton World Championships entered a white-hot stage, the sixth match day will produce a four-round list, the world's first Dai Ziying played steadily, fell two straight sets to eliminate the defending champion Sindu, became the first player to advance, and then she has to wait for the winners of The National Yu He Bingjiao and Han Yue, if nothing else, Dai Ziying should be against He Bingjiao and compete for the final seat in the upper half.

Chinese Taipei famous Dai Ziying 27 years old, ranked 1st in the world, won the All England, Finals, Asian Games women's singles champion, Olympic women's singles silver medal, the final lost to the national feather sister Chen Yufei, recently she won the World Badminton Federation awarded the Best Female Athlete of the Year Award, Dai Ziying's competition is very ornamental, if not too many mistakes, stability is indeed poor, should be able to achieve more good results.
For Dai Ziying, this is her last chance to impact the world championship, if she can't grasp it, her career will leave regrets, ranking the women's singles world first for such a long time, never won the world championship, mainly a problem of personal mentality, I have not encountered too strong opponents before, but it will not be easy to play with Sindu, both sides are top masters, all depending on the on-the-spot play.
India's sister Sindu is 26 years old, ranked 7th in the world, she is a typical contest player, the more critical moments can often play a high level, the last World Championship Sindu defeated Okuhara hope to win the championship, both Olympic Games have won medals, the two sides have as many as 19 careers, Dai Ziying 14 wins occupy an absolute advantage, just this year's Olympic women's singles semifinals, Dai Ziying fell two straight sets to win Sindu.
In the first set, Dai Ziying was in a hot state, and at the beginning he stepped up the offensive and formed a comprehensive suppression of Sindu, Dai Ziying entered the midfield suspension 11-6, and after returning, Sindu continued to chase points, but Dai Ziying always held the initiative of the game, through the change of rhythm, limiting Sindu's attack, Dai Ziying's false action had a high error rate, Sindu chased to 17-19, dai Ziying scored 2 consecutive points to take the lead 21-17.
In the second set, Sindu fought back, strengthening the offensive in the hope of disrupting the rhythm of the opponent, Dai Ziying was very hard, the two played high-quality multi-shot consecutively, Sindu took the lead and failed to expand the point difference, Dai Ziying chased 7 draws to score 3 points, followed by 11-8 into the midfield timeout, after returning to Cindu to chase 12 draws, Dai Ziying began to accelerate, leading the race to end the game with 21-13, 2-0 victory over Sindu to enter the final four.
This game Dai Ziying changed too much, Sindu was transferred back and forth, not sure of Dai Ziying's fake actions, always in a passive situation, and then Dai Ziying will play against the winners of He Bingjiao and Han Yue, no matter who the opponent is, it will be a game that cannot be missed.