England's captain Eoin Morgan catches the ball during a training session on the eve of their opening match of the ICC Cricket World Cup against South Africa, at The Oval in London on May 29, 2019. Dibyangshu Sarkar / AFP
England selector Ed Smith, foreground, keeps an eye on proceedings during England nets. Stu Forster / Getty Images
South Africa's Chris Morris bowls during a training session on the eve of their opening match. Dibyangshu Sarkar / AFP
South Africa captain Faf du Plessis bats in the nets during a training session. Dibyangshu Sarkar / AFP
England player Mark Wood bowls to Ben Stokes during England nets. Stu Forster / Getty Images
England captain Eoin Morgan shares a joke during nets ahead of the opening match. Stu Forster / Getty Images
England players Jason Roy, left, and Joe Root take part in a training drill during England nets. Stu Forster / Getty Images
South Africa's Hashim Amla, centre, chats to England's Adil Rashid, right, during a training session. Dibyangshu Sarkar / AFP
South Africa's Chris Morris takes part in a training session on the eve of their opening match. Dibyangshu Sarkar / AFP
England batsman Jos Buttler, right, smiles as Liam Dawson looks on during England nets ahead of the opening match. Stu Forster / Getty Images
England player Mark Wood measures his run up during England nets ahead of the opening match. Stu Forster / Getty Images
England bowler Jofra Archer chats with Ben Stokes during England nets ahead of the opening match. Stu Forster / Getty Images
England's Mark Wood during nets. Paul Childs / Reuters
General view as South Africa players play football before nets. Paul Childs / Reuters
England's Liam Plunkett shakes hands with South Africa head coach Ottis Gibson during nets. Paul Childs / Reuters
England's captain Eoin Morgan catches the ball during a training session on the eve of their opening match of the ICC Cricket World Cup against South Africa, at The Oval in London on May 29, 2019. Dibyangshu Sarkar / AFP
England selector Ed Smith, foreground, keeps an eye on proceedings during England nets. Stu Forster / Getty Images
South Africa's Chris Morris bowls during a training session on the eve of their opening match. Dibyangshu Sarkar / AFP
South Africa captain Faf du Plessis bats in the nets during a training session. Dibyangshu Sarkar / AFP
England player Mark Wood bowls to Ben Stokes during England nets. Stu Forster / Getty Images
England captain Eoin Morgan shares a joke during nets ahead of the opening match. Stu Forster / Getty Images
England players Jason Roy, left, and Joe Root take part in a training drill during England nets. Stu Forster / Getty Images
South Africa's Hashim Amla, centre, chats to England's Adil Rashid, right, during a training session. Dibyangshu Sarkar / AFP
South Africa's Chris Morris takes part in a training session on the eve of their opening match. Dibyangshu Sarkar / AFP
England batsman Jos Buttler, right, smiles as Liam Dawson looks on during England nets ahead of the opening match. Stu Forster / Getty Images
England player Mark Wood measures his run up during England nets ahead of the opening match. Stu Forster / Getty Images
England bowler Jofra Archer chats with Ben Stokes during England nets ahead of the opening match. Stu Forster / Getty Images
England's Mark Wood during nets. Paul Childs / Reuters
General view as South Africa players play football before nets. Paul Childs / Reuters
England's Liam Plunkett shakes hands with South Africa head coach Ottis Gibson during nets. Paul Childs / Reuters
England's captain Eoin Morgan catches the ball during a training session on the eve of their opening match of the ICC Cricket World Cup against South Africa, at The Oval in London on May 29, 2019. Dibyangshu Sarkar / AFP