5. Basil D'Oliveira affairThe Basil D'Oliveira affair occurred in 1968, involving the South African-born cricketer, who was denied inclusion in the South African squad due to apartheid policies
4. Bodyline series In 1932-33, England toured Australia and used a controversial bowling tactic called "Bodyline". The tactic involved bowling short-pitched deliveries at the batsman's body
3. The death of Phillip HughesPhillip Hughes, an Australian international cricketer, died on November 27, 2014, after being struck on the head by a bouncer during a Sheffield Shield match.
2. underarm delivery by Trevor Chappell In 1981, Aus vs. NZ one-day match, Trevor Chappell bowled an illegal underarm delivery to prevent NZ from winning with six runs needed from the final ball.
1. The match-fixing scandal involving Hansie CronjeHansie Cronje, the former captain of the South African cricket team, was involved in a match-fixing scandal in the late 1990s and early 2000s, accepting bribes from bookmakers to influence match outcomes