It was the incident that effectively sparked the end of Mark Webber's Formula 1 career.

Leading the Malaysian Grand Prix on this day in 2013, and with the race reaching its closing stages, Webber held the lead from Red Bull team-mate Sebastian Vettel.

With Vettel hounding Webber, he was delivered the now infamous instruction, "Sebastian, multi-map 21, multi-map 21, and look after your tyres please."

Vettel refused to listen, forcing team principal Christian Horner to intervene, by stating to him: "This is silly Seb. Come on."

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As a battle ensued, it was Vettel who ultimately prevailed to claim victory, leaving runner-up Webber incensed in the cool-down room post-race, and again on the podium while interviewed.

Although Vettel apologised, their relationship was beyond reparation, with Webber calling it a day in F1 at the end of a season in which his team-mate went on to win the last of his four world titles.