Cameron Bancroft

Ball tampering: What is it and why is it such a big deal?

The ball-tampering episode involving Steve Smith, David Warner and Cameron Bancroft has left reputations in tatters and angered and disappointed politicians, fans and former players alike.

Smith, who before the weekend was one of his country's most revered sportsmen, and Warner have both received 12-month bans by Cricket Australia Wednesday for their part in illegal tampering with the ball on day three of the third Test against South Africa.