Cricket might be called the "gentlemen's game", but it has been anything but at times over the years.

We count down the top 20 most controversial moments in cricket history.

PART 1

5. Underarm Delivery (1981)

"One of the worst things I have ever seen done on a cricket field."

A now-famous quote from the sporting immortal Richie Benaud, on this day 41-years-ago. Australian captain Greg Chappell forced his younger brother Trevor to bowl an underarm delivery with the final ball, with New Zealand requiring six runs to tie the match off the last ball.

What followed was pandemonium across the ditch.

After the game in the dressing rooms, you could hear a pin drop. The lengthy silence was only interrupted when Mark Burgess smashed a teacup, throwing it at a wall.

New Zealand Prime Minister Robert Muldoon said it was "true cowardice, and I consider it appropriate that the Australian team were wearing yellow."

The underarm delivery was the more commonly used delivery before 1864, yet was not outlawed from the cricketing rulebook, even though it was widely frowned upon.