Marin retained the world title with a 21-16, 21-19 win over the Indian ace.
Tokyo gold medallist para shuttler Pramod Bhagat will not be able to defend his title at the Paris Paralympics after he was handed a 18-month suspension for breaching BWF's anti-doping whereabouts clause.
Shuttlers in the singles competition have to be inside top-16 of world rankings to qualify for the Olympics. The cut-off for doubles is also top-16.
'I want to take Durga Maa's blessings and achieve a lot more'
A quarterfinal loss at the All England Championship saw Indian shuttler Saina Nehwal slip three places down the rung to the sixth spot in the latest BWF world ranking on Thursday. Saina, who turned 26, went through injuries last year and missed out on a few tournaments this season, including the Syed Modi Grand Prix Gold and South Asian Games in January and February respectively. The Olympic bronze medallist, who had finished runners-up at the 2015 All England Championship, lost to Tai Tzu Ying in straight games in the quarterfinals. The Indian now has 73,222 points. Two-time bronze medallist at World Championship, P V Sindhu improved a place to reach the 11th spot.
Sindhu stands on the brink of history as she pursues the gold medal in the upcoming Games, having won a silver and bronze in 2016 Rio and 2020 Tokyo edition respectively.
Treesa Jolly and Gayatri Gopichand went down to World No 4. pair Nami Matsuyama and Chiharu Shida in the semi-finals on Saturday.
India's lack of bench strength was exposed as they suffered a crushing 1-4 defeat against Denmark in their opening Group D match at the BWF Sudirman Cup Finals.
Sindhu, who is currently competing at the French Open in Paris, jumped one rung to stay one spot behind Chinese Taipei's Tai Tzu Ying, who continues to dominate the rankings.
Srikanth needed only 42 minutes to get the better of the 20-year-old Jason Gunawan from Hong Kong 21-19, 21-15 in his round of 16 contest.
This is the first time that Sindhu has lost to a fellow Indian in an international event in seven years.
Two-time Olympic medallist P V Sindhu hopes the Commonwealth Games will serve as a perfect launchpad in her quest to regain the World Championships crown next month.
Lakshya Sen dished out a badminton masterpiece to notch up his second BWF Super 500 title with a straight-game win over Li Shi Feng of China in the final.
Saina Nehwal, who won a bronze at the World Championship, jumped four rungs to be placed at the 12th spot, while Kidambi Srikanth also improved two positions in the latest BWF World ranking.
Chirag Shetty and Satwiksairaj Rankireddy bagged the biggest title of their career, winning the French Open Super 750 crown with a straight-game decimation of Chinese Taipei's Lu Ching Yao and Yang Po Han in the men's doubles final in Paris on Sunday.
Sen, who had emulated his mentor Prakash Padukone by winning the World championship bronze in Huelva, Spain last month, will now look to claim the All England Championships in March.
For all her achievements, says Bikash Mohapatra, Saina is yet to win either the Worlds, Olympics or All England, badminton's flagship events.
Ace Indian shuttlers, Saina Nehwal and Kidambi Srikanth, had a disappointing start to their campaign at the BWF Super Series Finals as they suffered straight-game defeats on the opening day of the prestigious event in Dubai.
Lakshya Sen's woeful run continued as he made a first round exit
India finished with 12 medals, including three gold at the championship.
Sudirman Cup: India bow out after defeat against Indonesia
Parupalli Kashyap regained his place inside the top 10 in the latest BWF's world ranking, release on Thurday.
Sporting fraternity hails Sindhu's historic World C'ships gold
Fresh from their Korea Open triumph, Satwiksairaj Rankireddy and Chirag Shetty will look to continue their dream run.
The top-16 in the world by April-end will make the cut for the Olympics.
Badminton world number one Lee Chong Wei of Malaysia has been provisionally suspended for an "apparent" anti-doping violation, the Badminton World Federation (BWF) said on Tuesday.
India signed off in 12th place in the last edition in 2019, with the country's best result being a fourth-place finish in the 2008 edition.
Parupalli Kashyap advanced to the men's singles quarter-finals at the Korea Open after a hard-earned victory over Malaysia's Daren Liew, in Incheon, on Thursday. The Indian shuttler prevailed 21-17, 11-21, 21-12 in 56 minutes.
Lakshya Sen has worked on his "speed and variations" to be battle ready for the new season.
Star Indian shuttlers PV Sindhu and Kidambi Srikanth will look to arrest their slump in form when they begin their campaign at the Australia Open badminton tournament in Sydney on Tuesday.
The Indian badminton team returned empty-handed from the Olympics for the first time in over a decade.
After Indonesia and South Korea on Friday joined Thailand, Australia, Chinese Taipei and Algeria in pulling out due to the dreaded disease
The BWF said that it was also looking at options to host its annual general meeting and members' forum which were due to take place in Aarhus in August.
H S Prannoy, who won a bronze medal in the singles at the Asian Games, has decided to switch allegiance to Tamil Nadu from Kerala.
Prannoy signs off with maiden World Championships bronze medal after losing semifinal to Vitidsarn
Kidambi Srikanth and H S Prannoy sailed into the pre-quarter-finals, but it was heartbreak for Parupalli Kashyap in the men's singles at the World Badminton Championships in Jakarta on Wednesday.
Saina Nehwal feels the year going by is one of the best of her career but rued that a series of injuries affected her chances of winning more titles.
Kohli's post stole people's hearts becoming the most retweeted sports-related tweet
The 16-year-old from Gujarat was rewarded for last year's stellar run, which saw her win titles in three junior international tournaments. It enabled her rise three places and take the top position in the BWF junior rankings.
The Badminton World Federation (BWF) on Wednesday said it might freeze the world rankings for a while as it works on a "fair solution" to the Olympic qualification process after the coronavirus pandemic forced a postponement of the Tokyo Games to 2021. There have been growing calls to freeze the world rankings after cancellations and postponements wrecked the sport's calendar. Indian shuttlers Saina Nehwal, B Sai Praneeth, Parupalli Kashyap and H S Prannoy have been leading the way in expressing concerns.