The World No 1 ended his long wait for a title with a 21-17, 21-11 win over Antonsen on Sunday.
India's challenge at the Japan Open ended with Sai Praneeth's losing to top seed and home hero Kento Momota in the semi-finals, in Tokyo, on Saturday. The Indian lost 18-21, 12-21 in 45 minutes.
The world number 18 Indian will now take on former world champion, Singapore's Loh Kean Yew in the second round.
India's women shuttlers assured themselves of a maiden Badminton Asia Team Championships medal by cruising to a 3-0 win over Hong Kong in the quarter-finals.
World number one Kento Momota was stunned by number 38 South Korea's Heo Kwanghee on Wednesday, going down 15-21, 19-21 and looking visibly despondent at each lost point in his first round match at the Olympics, on Wednesday.
H S Prannoy stunned World No 10 Kanta Tsuneyama while ace Indian women shuttlers PV Sindhu and Saina Nehwal also sailed into the second round of the Malaysia Masters, in Kuala Lumpur, on Wednesday. World Championships bronze-medallist B Sai Praneeth and the seasoned Kidambi Srikanth, though, bowed out of the men's singles events.
The 2021 All England Open will be the second tournament this year to offer ranking points to qualify for the Tokyo Olympics, after the Swiss Open.
Sameer Verma advanced to the semi-finals of the US $150,000 Swiss Open with an easy victory over former world No. 2 Kento Momota of Japan, in Basel, on Saturday.
Defending champion Kidambi Srikanth beat compatriot Sameer Verma 22-20, 19-21, 23-21 in an absorbing men's singles quarter-final to enter the semi-finals of the Denmark Open, in Odense, on Friday night. The Indian ace will meet second seeded Japanese and world No 1 Kento Momota, who got the better of Thailand's Khosit Phetpradab 21-13, 21-9 in another quarter-final.
Sen won his second round contest 21-17, 21-10, taking 72 minutes to complete the formality.
Parupalli Kashyap's impressive run at the Korea Open Super 500 tournament came to an end after he lost to World number 1 Kento Momota of Japan in the men's singles semi-finals.
Pusarla Sindhu romped into the final of the World Badminton Championships, trouncing China's Chen Yu Fei 21-7, 21-14 in semi-finals, in Basel, on Saturday.
Summary of sports events and persons who made news on Wednesday.
Sindhu and Saina will once again be India's best bet as they look to put up a good show this week.
The 33-year-old from Hyderabad, who is the lone Indian left in fray, outsmarted Jorgensen 24-22, 21-8 in 37 minutes
Sindhu battled hard before going down to Akane Yamaguchi 18-21, 15-21.
The 28-year-old from Hyderabad, a winner of the Indonesia Masters, semi-finalist at Malaysia Masters and quarter-finalist at the All England Championship, saw US$36,825 added to her career earnings.
Returning to action after a break, double Olympic medallist P V Sindhu saw off Turkey's Neslihan Yigit in straight games to join compatriots Kidambi Srikanth and Sameer Verma in the second round of the Denmark Open in Odense on Tuesday.
A team mate of Japanese badminton Olympic medal hope Kento Momota on Friday confessed to taking the world number two-ranked player to an illegal casino and tearfully begged officials to allow the star to compete at the Rio de Janeiro Games.
None of the other three quarters boast of such a strong star cast but there would be a few mouth-watering opening round clashes to look forward to.
This is Saina's first win over the South Korean, who got the better of the Indian in the quarter-finals of the French Open last year.
The match comes on the heels of one of the biggest upsets in badminton history on Wednesday night, when men's singles world number one Kento Momota's Olympic dreams were crushed by number 38 South Korea's Heo Kwang-hee.
Srikanth, now ranked five, was placed seventh before the Malaysia Open, where he lost his last-four clash to the reigning Asian champion Kento Momota.
Jonatan Christie gifted Indonesia the Asian Games gold medal they most yearned for when he beat Taiwan's Chou Tienchen in an exciting men's singles badminton final in front of a vociferous home crowd on Tuesday.
The accident took place just after Momota had won the Malaysia Masters title.
Sindhu, who had finished runner-up at the last edition in Dubai, dished out a superb game, mixing with patience with aggression, to edging the Japanese 24-22, 21-15.
HS Prannoy becomes the first player to beat Tokyo Olympics gold medallist Victor Axelsen in full a match since March.
The Olympic silver medallist will now face Korea's An Se Young next.
The Rio Olympics gold medallist had withdrawn from the All England Championships this year after suffering the injury during the Swiss Open.
India's top shuttlers P V Sindhu and Kidambi Srikanth registered straight-game victories to make impressive starts to their singles campaigns at the season-ending BWF World Tour Finals in Bali on Wednesday.
P V Sindhu eased into the second round with a straight-game win after fellow Indian Lakshya Sen showed his mettle with a stunning victory over world No. 10 Japanese Kanta Tsuneyama on the opening day of Indonesia Masters Super 750 in Bali on Tuesday.
Srikanth showed great determination to outwit Korea's World No 25 Lee Dong Keun 12-21, 21-16, 21-18 in a second-round clash that clocked an hour and 13 minutes. The Indian had lost twice to the 27-year-old Korean in the past two meetings.
Indian shuttler Anand Pawar powered his way to the main draw of the men's singles competition with a straight-game victory over German's Dieter Domke in the Denmark Super Series Premier tournament.
India's Lakshya Sen on Thursday progressed to the quarter-finals of the All England Badminton Championships in Birmingham, while HS Prannoy crashed out in the second round.
Srikanth lost to Ireland's unseeded player Nguyen Nhat 11-21, 21-15, 12-21
Top Thai shuttler Ratchanok Intanon pocketed her second Yonex-Sunrise India Open Super Series title with a straight-game victory over Olympic champion Li Xuerui in the women's singles final at the Siri Fort Sports Complex, in New Delhi, on Sunday.
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.
Srikanth had last reached the quarterfinals at the Singapore Open in April.
Defending champion Lakshya Sen looked in fine fettle as he registered a straight-game win over compatriot H S Prannoy to make a winning start to his title defence at the Yonex-Sunrise India Open Super 750 badminton tournament, in Delhi, on Tuesday.
Rising player Lakshya Sen went down to Denmark's Hans-Kristian Solberg Vittinghus