At a safety car restart prompted by Valtteri Bottas' retirement, Leclerc had the run on Vettel with fresher tyres, but the German fought back on the pit straight, with the aid of DRS.
As the German looked to shut the door on his teammate, their wheels touched, causing a dramatic failure on Leclerc's front right and leaving Vettel with a puncture.
Leclerc told Sky Sports: "I overtook in Turn 1 which I enjoyed this overtake and then in Turn 3, I had to close because I was aware Seb would try again and he did.
"He went around the outside, which there was little space but I left the space, he took [it] and then towards the end of the straight, he started to squeeze me a little bit to the inside and we were very close.
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