Controversies at the 2012 London Olympic Games

Manoj Kumar: The Indian boxer was knocked out of the 2012 London Olympics after he lost his 64kg pre-quarterfinal bout to Great Britain's Tom Stalker at the Excel Arena. 'Cheating, cheating, cheating,' was Kumar's verdict after losing his battle of Commonwealth champions as Indian grumbles at controversial Olympic scoring continued.

Nicholas Delpopolo's expulsion: American judoka Nick Delpopolo was expelled from the Olympics for testing positive for tetrahydrocannabinol, or as it's more commonly known, THC. It's the chemical found in marijuana and hash.

Germans win gold after double relegation: Germany ended up with gold in the Olympic women's track cycling team sprint after original winners China were relegated to second for a takeover infringement having earlier broken two world records. Hosts and medal hopefuls Britain had been disqualified in the first round for another illegal changeover.

Kim Collins lashes out: Former world champion Kim Collins said he would not race in the Olympic 100 metres heats and will never run for St Kitts & Nevis again after an apparent fallout with the country's officials. The 36-year-old Collins, who won his world title in 2003, was appearing at his fifth Olympics and carried his country's flag at the opening ceremony. Local media reported that Collins had fallen out with his country's officials over a visit from his wife and he hinted as much. "Even men in prison get their wives to visit," he tweeted. "6 athletes and 9 officials. That ain't enough to make some people happy. Omg."

Doping suspicion over Ye Shiwen: Chinese swimming sensation Ye Shiwen should be basking in the glow of Olympic glory - aged just 16 she has a world record, a Games record and two gold medals. Instead, she has been forced to fend off questions and insinuations of cheating in a doping row that has no solid basis in fact, yet threatens to overshadow the Games and a thrilling few days in the pool.

IOC hints that China's Ye is clean
Ye could have beaten me: Lochte
Chinese swimmer fights doping doubts
Shiwen slams 'biased' westerners

Sumit Sangwan boxing result: India lodged an official complaint with the organisers of the London Olympics after boxer Sumit Sangwan's controversial loss to Brazilian Yamaguchi Falcao Florentino in the round of 32 in the 81 kg category. The appeal was subesequently rejected.

Sangwan loses controversial bout, India lodges complaint

Table tennis final controversy: Li Xiaoxia of China beat teammate Ding Ning in a controversial Olympic women's singles table tennis final. The fourth game saw controversy that reduced Ding Ning to tears and effectively ended her challenge. With Li 8-2 up, Ding was shown a red card for dissent after approaching the umpire about a serve fault.

Li takes TT gold in controversial final

Badminton match fixing: Eight women badminton players were disqualified from the London Olympics' doubles event for throwing matches to get a favourable opponent. The pairs are: Wang Xiaoli and Yu Yang of China; Greysia Polii and Meiliana Jauhari of Indonesia; Jung Kyung Eun and Kim Ha Na of South Korea; and Ha Jung Eun and Kim Min Jung, also of South Korea. The Badminton World Federation later shot down the appeal of India's Jwala Gutta and Ashwini Ponnappa to be reinstated in the event.

Eight badminton players thrown out
BWF rejects India's appeal
Badminton matches 'fixed'
[Spirit of sport infringed

Madhura makes her 'mark': During the Parade of Nations, an unknown woman was seen at the front of the Indian contingent wearing a tracksuit instead of the officially sanctioned national uniform for the event. The acting Chef-de-Mission for the Indian contignent Brigadier PK Muralidharan Raja expressed anger at the LOCOG for allowing this to happen despite security personnel checking the identity of athletes and staff before entering the stadium.

The Indian media subsequently identified the woman as Madhura Nagendra, a graduate student from Bangalore living in London and a dancer in another segment of the opening ceremony.

Intruder in Indian contingent
LOCOG apologises to India
Gatecrasher Madhura strikes again
India gatecrasher identified

Wieber misses cut: It was a shock all-round when world all-round gymnastics gold medallist Jordyn Wieber, failed to make the individual final. But, Wieber redeemed herself as she put in a sparkling display as the United States stormed to the Olympic women's gymnastics team gold. This was the U.S.'s first Olympic team title since 1996.

Wieber's road to Olympic redemption
Wieber's pain is Raisman's gain

Individual epee timing and appeal: South Korean fencer Shin A-Lam was embroiled in a prolonged controversy at the ExCeL Centre on 30 July 2012. She had appeared to beat her opponent Britta Heidemann, but an issue developed around the timing clock, which had appeared to reset to 1 second after having counted down to zero, allowing Heidemann to score the winning point.

Shin was required to sit on the piste for almost an hour, often openly sobbing, while her coaches lodged an official complaint, prompting an announcer at the venue to confirm that moving from the piste would have been seen as indicating her acceptance of the ruling against her. After losing the protest, Shin fought, and lost, against Yujie Sun of China thirty minutes later in the bronze medal match.

Fencing controversy costs South Korea
Shin loses bronze after protest

Ryan Lochte's Flag Grill: US swimmer Ryan Lochte, who won the gold medal in the men's individual 400 meter individual medley, supports an American flag-themed grill, and it almost cost him his gold medal. A spokesman from the International Olympics Committee stated that the grill may not be a part of the permissible uniform.

Lochte's grill almost cost him gold

Empty seats: According to the official figures from LOCOG, on the first day of the Games around 14 per cent of those who held tickets didn't turn up. On succeeding days, the stay-aways amounted to 58,000 and 50,000 making the average no show figure to be nearly 60,000.

London organisers investigating empty seats
Uproar over empty seats
Troops, students to fill empty seats
Olympics seats still going empty

Tom Daley taunted: Police arrested a 17-year-old man on suspicion of malicious communication after British diver Tom Daley received tweets saying he had let down his deceased father by finishing fourth and failing to win a medal.

Cyberbullies told to back off

Iran boxer disqualified: Ali Mazaheri cried foul when the heavyweight was disqualified after being warned three times for persistent holding against Cuban Jose Larduet Gomez despite leading by two points going into the second round. "It was a fix. I could have got a bronze easily if it hadn't been for that," an irate Mazaheri, who walked out of the ring before the decision was officially announced, said.

Boxing judges under fire amid "fix" claims

Doping athletes: The list of athletes expelled from the London Olympic grew when Uzbek gymnast Luiza Galiulina was penalised after her B sample also tested positive for the banned substance furosemide.

Galiulina expelled for doping
Hungarian discus thrower banned
Albanian lifter banned for steroids
Anti-doping lab to become research centre

Kohei Uchimura's routine: A judging controversy erupted at the all-around team event after Japan's Kohei Uchimura had a bad dismount off the pommel horse. The initial judging dropped Japan into fourth place, out of the medals, with China, Great Britain and Ukraine taking gold, silver, and bronze, respectively.

However, after Japan filed a protest, the judges reviewed the tape and credited Uchimura with a dismount instead of a missed dismount, determining that he did indeed perform the final handstand. This raised Japan's score by 0.7 points, moving them from fourth to the silver medal position, dropping Great Britain to bronze and Ukraine out of the medals.

North Korea flag blunder: In the first day of the Olympic events on 25 July 2012, during the women's football tournament, the match between North Korea and Colombia was delayed by a little over an hour because the flag of South Korea was mistakenly displayed on the electronic scoreboard in Hampden Park.

The North Korean team walked off the pitch in protest at seeing the South Korean flag displayed by their names and refused to warm-up whilst the flag was being displayed. The game then commenced after a delay and rectification of the error.

Games score own goal
London apologises to North Korea
Olympic official rails against flag blunder

Lost Wembley Stadium keys: Police lost a set of keys at Wembley Stadium, but despite this lapse, officials insisted there are no security concerns.

No security concern over lost Wembley keys

Olympic flame invisible: The London Organizing Committee for Olympics and Paralympics Games said the flame would not go public and stay inside the stadium, as they didn't create the cauldron for it to become a tourist attraction. The steel and copper cauldron, lit at the opening ceremony on 27 July 2012, will not burn above the stadium as at previous Olympics, but will remain inside the Olympic stadium.

Flame is not a tourist attraction, says LOCOG
Olympic flame is put off and relit
Controversy stirs over out-of-sight Olympic cauldron

Munich victims' tribute: International Olympic Committee President Jacques Rogge led a surprise tribute in the athletes village before the start of the London Olympics but that low-key event failed to satisfy relatives of the victims or Israeli officials. London organising committee chairman Seb Coe said he felt the tribute had been appropriate and played down calls for the 40th anniversary of the massacre to be marked with a higher profile commemoration.

Organisers try to quell anger
IOC holds surprise commemoration
'Stand up for Munich dead'

Racist tweets: Swiss soccer player Michel Morganella was expelled from the London Olympics for sending a message that the Swiss team said "gravely insulted and violated" the dignity of South Korea. Greek triple jumper Paraskevi Papachristou was thrown out of her nation's team for sending a racist tweet last week, two days before the Games start.

Swiss player expelled
Greek triple jumper withdrawn
'Games still social media Olympics'