Warne said James Anderson’s actions “might get people talking”, after watching a piece of Australian television broadcast footage which claimed to show the bowler digging his thumbnail into the ball during the fourth day.

“I’m not sure you are allowed to use your fingernail there,” said Warne during the live coverage. Fellow commentator Michael Slater added: “That’s interesting, you can’t get your nail into the ball. That’s a no-no.”

“It has been both teams,” added Bayliss. “To get the ball to go reverse, one side has to be rough, the other smooth and dry, so all teams around the world try to get it reversing as soon as possible. The umpires don’t want it to be too over the top, so a quiet word to both captains soon stops it.”