By Martyn Herman LONDON (Reuters) -When Jannik Sinner arrived at three match points in the fourth set of his Wimbledon final against Carlos Alcaraz on Sunday, the memory of what happened five weeks ago in Paris was flashing through the minds of everyone inside Centre Court.

On Sunday, during the men's Wimbledon final between two-time reigning champion Carlos Alcaraz and his rival Jannik Sinner, someone not only popped a bottle of champagne mid-match, but their cork also landed on the court, which temporarily stopped play.

Paul Skipp - head of the Wimbledon stringing team - told us the strings most commonly break because they have been rubbing against each other. "It's going to be the friction," he said. "As they move,