MICHAEL VAUGHAN says he is “pretty sure” Australia were tampering with the ball during this winter’s 4-0 Ashes series win over England.

The former England captain’s claim comes after Australia skipper Steve Smith admitted this weekend his side had tried to manipulate the ball during the third Test defeat to South Africa.

Smith insisted it was the first time time it had happened under his captaincy, but Vaughan believes it has been going on for “quite a while.”