With London sweltering in a summer heatwave, Alcaraz will aim to maintain his red-hot form in the opening match on Centre Court against 38-year-old Italian Fabio Fognini.
The British and Irish Lions suffered a setback with experienced scrum-half Tomos Williams ruled out of the rest of the Australia tour with a hamstring injury.
Maro Itoje will captain a vastly changed British and Irish Lions for their second Australian match against Queensland Reds, with head coach Andy Farrell expecting the clash to be "a big step up".
Paris Saint-Germain coach Luis Enrique said defeating Lionel Messi and Inter Miami on Sunday was trickier than it seemed despite the French side's 4-0 Club World Cup last 16 triumph.
South African Aldrich Potgieter sank a birdie putt from just inside 18 feet on the fifth playoff hole to win the Rocket Classic for his first US PGA Tour title.