Into unknown for Edmund?

Courier Sport looks at four aspects to look for on the fourth day of the championships

Edmund and Djokovic on collision course

British No 1 Kyle Edmund and Serbia’s three-time Wimbledon champion Novak Djokovic will go head to head on Saturday, as long as both win today. The prospect is tantalising and it is hard to see Djokovic having any trouble with Argentinian lefthander Horacio Zeballos, and providing that theory holds true it would leave Edmund to take out little-known American Bradley Klahn to get the weekend match on. It should be well within his scope, but Edmund has never reached the third round at Wimbledon before, meaning the 23-year-old is edging towards unexplored territory.

Kyrgios a changed man?

The Australian has made headlines for his mischievous, sometimes misbehaving ways in the past at Wimbledon and elsewhere. But he was good as gold in his opener on Tuesday, a four-set win over Denis Istomin. Today he tackles Dutchman Robin Haase, a player he beat in their only previous meeting three years ago in Estoril. Kyrgios has the tennis tools to make a huge impact on grass, and might be wising up to the need to adopt the right attitude too.

First big test for Konta

Dominika Cibulkova is a player few seeds would especially relish facing at Wimbledon. The hard-hitting Slovakian can name Caroline Wozniacki, Agnieszka Radwanska and Eugenie Bouchard among her past victims at the championships, and she has a point to prove after being knocked out of the seedings when Wimbledon officials elected to promote Serena Williams into the top-32 pack. Johanna Konta will have her work cut out, and if the British No 1 comes through that will be a highly positive sign. Fellow Briton Katie Boulter, meanwhile, faces a tall order against Japan’s brilliant 20-year-old Naomi Osaka.