Paris 2024 sold a record 12 million tickets for the Olympics and Paralympics, beating the Games record previously set by London 2012, organisers said on Sunday.
Palfrey's comments triggered a fierce reaction from team officials and the Australian Olympic Committee.
Lin clinched gold in the women's boxing final match on Sunday, an emotional win that came as she and Algerian boxer Imane Khelif have been embroiled in a major row over their gender eligibility.
Tennis was introduced to China in the 1860s, but it failed to gain mass appeal and was largely an elite sport reserved for the wealthiest families.
The Australian Olympic Committee has decried a "misleading and bullying" online petition that described Gunn's performance as "unethical" and questioned how she was chosen for Paris.
Indian wrestler Vinesh Phogat on Thursday lost her appeal to the Court of Arbitration for Sport (CAS) after her disqualification from the women's 50kg final at the Paris Olympics for being overweight.
The athletes, fresh from a national record 53 Olympic medal trawl, were asked about absent colleague b-girl Rachael "Raygun" Gunn.
Australia's Olympic team, including gold medallists Jessica Fox, Kaylee McKeown and Ariarne Titmus, arrived back in Sydney on Wednesday to a rapturous welcome from friends, family and Prime Minister Anthony Albanese.
Yusuf Dikec may have an Olympic medal and a legion of adoring online fans, but the Turkish pistol sharpshooter is aiming to keep his feet on the ground.
Afghan B-Girl Manizha Talash, a member of the refugee Olympic team at the Paris Games, was disqualified after displaying the words "Free Afghan Women" on her cape during her breaking routine in the competition's pre-qualifiers on Friday.
The penultimate day of the Paris Olympics on Saturday will have nearly 40 medals up for grabs, with nine finals in athletics alone.
The Netherlands completed a remarkable double in Olympic hockey on Friday when their women's team, the defending champions, beat China 3-1 in a shootout to take gold just 24 hours after the men's side had triumphed over Germany.
France coach Thierry Henry described his team's Olympic performance as "magical" despite their agonising extra-time defeat against Spain in the men's football final on Friday.
Victory at the Paris Olympics has "a special taste", said Algeria's Imane Khelif after winning boxing gold on Friday, following two weeks of speculation over her eligibility amid a gender dispute that has engulfed the Games.
Spain secured the gold medal in the Olympic men's football tournament after substitute Sergio Camello scored twice in extra time to earn a dramatic 5-3 win over hosts France in a nail-biting final at Parc des Princes on Friday.
Belgium's Nafissatou Thiam became the first woman in history to win three consecutive Olympic heptathlon crowns on Friday, sealing victory ahead of Britain's Katarina Johnson-Thompson.
Ma Long made Chinese Olympic history with the sixth gold of his career on Friday in the men's team event in Paris to embellish his reputation as the best table tennis player ever.
Bulgarian Karlos Nasar became the lightest man to lift 400 kilogrammes in competition as he shattered the men's 89kg weightlifting world record at the Olympics on Friday.
