Lee Chong Wei was involved in the 'Match-fixing Scandal' of 2016, which led to his suspension from the sport for eight months.

The 'All England Open' in 2021 was marred by player withdrawals due to COVID-19 travel restrictions and concerns over the safety of the event.

Tai Tzu-ying was accused of 'tanking' during the 'BWF World Championships' in 2017, which led to criticism from fans and fellow players.

The 'BWF World Championships' in 2019 was marred by controversy over umpiring decisions, which led to protests from players and coaches.

Viktor Axelsen was involved in a 'Racquet-smashing Incident' during the 'BWF World Tour Finals' in 2018, which led to a warning from the tournament officials.

The 'BWF World Tour Finals' in 2020 was marred by controversy over prize money disputes, which led to protests from players and their associations.

Viktor Axelsen was accused of 'Doping' during the 'BWF World Championships' in 2014, but the charges were later dropped due to lack of evidence.

The 'BWF World Championships' in 2015 was marred by controversy over venue conditions, which led to complaints from players and coaches.

Kento Momota was involved in a 'Racquet-throwing Incident' during the 'BWF World Tour Finals' in 2019, which led to a warning from the tournament officials.

The 'BWF World Championships' in 2017 was marred by controversy over umpiring decisions, which led to protests from players and coaches.

Lin Dan was accused of 'Match-fixing' during the 'BWF World Championships' in 2018, but the charges were later dropped due to lack of evidence.

The 'BWF World Championships' in 2016 was marred by controversy over scheduling issues, which led to complaints from players and coaches.

Lin Dan was involved in a 'Racquet-smashing Incident' during the 'BWF World Tour Finals' in 2017, which led to a warning from the tournament officials.

The 'BWF World Championships' in 2013 was marred by controversy over umpiring decisions, which led to protests from players and coaches.