Carlos Alcaraz faces a tricky test on Sunday against volatile Russian Andrey Rublev in his charge towards a third consecutive Wimbledon title, while Aryna Sabalenka looks unstoppable as she prepares to take on Elise Mertens.

LONDON (Reuters) -World number one Aryna Sabalenka continues her quest for a first Wimbledon title when she takes on Elise Mertens, while two-times defending champion Carlos Alcaraz faces Andrey Rublev when the fourth round begins on Sunday.

Two developing rivalries, the end of an old tradition and a legal battle that could define the tournament's future.