People follow social distancing rules while they queue outside a Sainsbury's in South London as the spread of the coronavirus disease (COVID-19) continues, in London, Britain, March 27, 2020. REUTERS/Henry Nicholls

People follow social distancing rules while they queue outside a Sainsbury's in South London as the spread of the coronavirus disease (COVID-19) continues, in London, Britain, March 27, 2020. REUTERS/Henry Nicholls

People follow social distancing rules while they queue outside a Sainsbury's in West London as the spread of the coronavirus disease (COVID-19) continues, in London, Britain, March 27, 2020. REUTERS/Toby Melville

People follow social distancing rules while they queue outside a Sainsbury's in West London as the spread of the coronavirus disease (COVID-19) continues, in London, Britain, March 27, 2020. REUTERS/Toby Melville

A customer shops in a Sainsbury's store in Redhill, Britain, March 27, 2018. REUTERS/Peter Nicholls

A customer picks bananas in a Sainsbury's store in Redhill, Britain, March 27, 2018. REUTERS/Peter Nicholls

A Sainsbury's worker stacks a vegetable shelf in a store in Redhill, Britain, March 27, 2018. REUTERS/Peter Nicholls

A Sainsbury's worker stacks a vegetable shelf in a store in Redhill, Britain, March 27, 2018. REUTERS/Peter Nicholls

A Sainsbury's worker fills a fish counter in a store in Redhill, Britain, March 27, 2018. REUTERS/Peter Nicholls

Pizzas are displayed in a Sainsbury's store in Redhill, Britain, March 27, 2018. REUTERS/Peter Nicholls

Mike Coupe, CEO of Sainsbury's poses in a store in Redhill, Britain, March 27, 2018. REUTERS/Peter Nicholls

Customers shop in a Sainsbury's store in Redhill, Britain, March 27, 2018. REUTERS/Peter Nicholls

A baker places loaves of bread on a tray in a Sainsbury's store in Redhill, Britain, March 27, 2018. REUTERS/Peter Nicholls

Bottles of own brand sparkling water are displayed in a Sainsbury's store in Redhill, Britain, March 27, 2018. REUTERS/Peter Nicholls

A Sainsbury's worker stacks a fruit shelf in a store in Redhill, Britain, March 27, 2018. REUTERS/Peter Nicholls

A new take away pizza counter is seen in a Sainsbury's store in Redhill, Britain, March 27, 2018. REUTERS/Peter Nicholls

A Sainsbury's customer walks carries their shopping in a store in Redhill, Britain, March 27, 2018. REUTERS/Peter Nicholls

A Sainsbury's worker stacks a meat shelf in a store in Redhill, Britain, March 27, 2018. REUTERS/Peter Nicholls

Customers browse the Argos section in a Sainsbury's store in Redhill, Britain, March 27, 2018. REUTERS/Peter Nicholls

Kevin O'Byrne, CFO of Sainsbury's poses in a store in Redhill, Britain, March 27, 2018. REUTERS/Peter Nicholls

Kevin O'Byrne, CFO of Sainsbury's poses in a store in Redhill, Britain, March 27, 2018. REUTERS/Peter Nicholls

Kevin O'Byrne, CFO of Sainsbury's poses in a store in Redhill, Britain, March 27, 2018. REUTERS/Peter Nicholls

Kevin O'Byrne, CFO of Sainsbury's poses in a store in Redhill, Britain, March 27, 2018. REUTERS/Peter Nicholls

Mike Coupe, CEO of Sainsbury's poses in a store in Redhill, Britain, March 27, 2018. REUTERS/Peter Nicholls

Mike Coupe, CEO of Sainsbury's poses in a store in Redhill, Britain, March 27, 2018. REUTERS/Peter Nicholls

Mike Coupe, CEO of Sainsbury's poses in a store in Redhill, Britain, March 27, 2018. REUTERS/Peter Nicholls

Mike Coupe, CEO of Sainsbury's poses in a store in Redhill, Britain, March 27, 2018. REUTERS/Peter Nicholls

Mike Coupe, CEO of Sainsbury's poses in a store in Redhill, Britain, March 27, 2018. REUTERS/Peter Nicholls

Sainsbury's canned meat is displayed at a supermarket in Hong Kong July 27, 2017. REUTERS/Bobby Yip

Britain's Queen Elizabeth views an exhibition on Fiji at the Sainsbury Centre for Visual Arts, University of East Anglia in Norwich, eastern England, January 27, 2017. REUTERS/Arthur Edwards/Pool

Britain's Queen Elizabeth views an exhibition on Fiji at the Sainsbury Centre for Visual Arts, University of East Anglia in Norwich, eastern England, January 27, 2017. REUTERS/Arthur Edwards/Pool

Britain's Queen Elizabeth views an exhibition on Fiji at the Sainsbury Centre for Visual Arts, University of East Anglia in Norwich, eastern England, January 27, 2017. REUTERS/Arthur Edwards/Pool

Britain's Queen Elizabeth is greeted as she arrives to view an exhibition on Fiji at the Sainsbury Centre for Visual Arts, University of East Anglia in Norwich, eastern England, January 27, 2017. REUTERS/Arthur Edwards/Pool

Britain's Queen Elizabeth looks towards a man dressed in traditional costume as she arrives to view an exhibition on Fiji at the Sainsbury Centre for Visual Arts, University of East Anglia in Norwich, eastern England, January 27, 2017. REUTERS/Arthur Edwards/Pool

Britain's Queen Elizabeth looks towards a man dressed in traditional costume as she arrives to view an exhibition on Fiji at the Sainsbury Centre for Visual Arts, University of East Anglia in Norwich, eastern England, January 27, 2017. REUTERS/Toby Melville TPX IMAGES OF THE DAY

Britain's Queen Elizabeth walks past a man dressed in traditional costume as she arrives to view an exhibition on Fiji at the Sainsbury Centre for Visual Arts, University of East Anglia in Norwich, eastern England, January 27, 2017. REUTERS/Toby Melville

Britain's Queen Elizabeth looks towards a man dressed in traditional costume as she arrives to view an exhibition on Fiji at the Sainsbury Centre for Visual Arts, University of East Anglia in Norwich, eastern England, January 27, 2017. REUTERS/Toby Melville

Britain's Queen Elizabeth looks towards a man dressed in traditional costume as she arrives to view an exhibition on Fiji at the Sainsbury Centre for Visual Arts, University of East Anglia in Norwich, eastern England, January 27, 2017. REUTERS/Toby Melville

Britain's Queen Elizabeth looks towards a man dressed in traditional costume as she arrives to view an exhibition on Fiji at the Sainsbury Centre for Visual Arts, University of East Anglia in Norwich, eastern England, January 27, 2017. REUTERS/Toby Melville

Britain's Queen Elizabeth arrives to view an exhibition on Fiji at the Sainsbury Centre for Visual Arts, University of East Anglia in Norwich, eastern England, January 27, 2017. REUTERS/Toby Melville

Britain's Queen Elizabeth arrives to view an exhibition on Fiji at the Sainsbury Centre for Visual Arts, University of East Anglia in Norwich, eastern England, January 27, 2017. REUTERS/Toby Melville

UAE's goalkeeper Majed Naser misses a save after Australia's Trent Sainsbury (20) scores a goal during their Asian Cup semi-final soccer match at the Newcastle Stadium in Newcastle January 27, 2015. REUTERS/Jason Reed (AUSTRALIA - Tags: SPORT SOCCER)

Australia's Trent Sainsbury (20) celebrates with teammates at the end of their Asian Cup semi-final soccer match against UAE at the Newcastle Stadium in Newcastle January 27, 2015. REUTERS/Jason Reed (AUSTRALIA - Tags: SPORT SOCCER)

Australia's Trent Sainsbury (C) celebrates with teammates Matthew Spiranovic and Massimo Luongo (R) at the end of their Asian Cup semi-final soccer match against UAE at the Newcastle Stadium in Newcastle January 27, 2015. REUTERS/Jason Reed (AUSTRALIA - Tags: SPORT SOCCER)

Australia's Trent Sainsbury (R) celebrates with teammate Matthew Spiranovic at the end of their Asian Cup semi-final soccer match against UAE at the Newcastle Stadium in Newcastle January 27, 2015. REUTERS/Jason Reed (AUSTRALIA - Tags: SPORT SOCCER)

Australia's Trent Sainsbury celebrates at the end of their Asian Cup semi-final soccer match against UAE at the Newcastle Stadium in Newcastle January 27, 2015. REUTERS/Jason Reed (AUSTRALIA - Tags: SPORT SOCCER)

UAE's goalkeeper Majed Naser reacts after Australia's Trent Sainsbury (20) scored a goal during their Asian Cup semi-final soccer match at the Newcastle Stadium in Newcastle January 27, 2015. REUTERS/Jason Reed (AUSTRALIA - Tags: SPORT SOCCER)

Australia's Trent Sainsbury (C) scores a goal against UAE during their Asian Cup semi-final soccer match at the Newcastle Stadium in Newcastle January 27, 2015. REUTERS/Jason Reed (AUSTRALIA - Tags: SPORT SOCCER)

Australia's Jason Davidson (R) celebrates with teammate Trent Sainsbury after scoring a goal against UAE during their Asian Cup semi-final soccer match at the Newcastle Stadium in Newcastle January 27, 2015. REUTERS/Edgar Su (AUSTRALIA - Tags: SPORT SOCCER)

Australia's Trent Sainsbury (20) celebrates with teammates after scoring a goal against UAE during their Asian Cup semi-final soccer match at the Newcastle Stadium in Newcastle January 27, 2015. REUTERS/Edgar Su (AUSTRALIA - Tags: SPORT SOCCER)

Australia's Trent Sainsbury (R) celebrates with teammate Tim Cahill after scoring a goal against UAE during their Asian Cup semi-final soccer match at the Newcastle Stadium in Newcastle January 27, 2015. REUTERS/Edgar Su (AUSTRALIA - Tags: SPORT SOCCER)

Australia's Trent Sainsbury (R) celebrates with teammate Tim Cahill after scoring a goal against UAE during their Asian Cup semi-final soccer match at the Newcastle Stadium in Newcastle January 27, 2015. REUTERS/Edgar Su (AUSTRALIA - Tags: SPORT SOCCER)

Australia's Trent Sainsbury (2nd R) celebrates with teammates after scoring a goal against UAE during their Asian Cup semi-final soccer match at the Newcastle Stadium in Newcastle January 27, 2015. REUTERS/Jason Reed (AUSTRALIA - Tags: SPORT SOCCER)

Australia's Trent Sainsbury (R) celebrates with teammate Tim Cahill after scoring a goal against UAE during their Asian Cup semi-final soccer match at the Newcastle Stadium in Newcastle January 27, 2015. REUTERS/Jason Reed (AUSTRALIA - Tags: SPORT SOCCER)

Australia's Trent Sainsbury (2nd L) celebrates with teammates after scoring a goal against UAE during their Asian Cup semi-final soccer match at the Newcastle Stadium in Newcastle January 27, 2015. REUTERS/Jason Reed (AUSTRALIA - Tags: SPORT SOCCER)

Australia's Trent Sainsbury (20) celebrates with teammates after scoring a goal against UAE during their Asian Cup semi-final soccer match at the Newcastle Stadium in Newcastle January 27, 2015. REUTERS/Jason Reed (AUSTRALIA - Tags: SPORT SOCCER)

Australia's Trent Sainsbury (20) celebrates with teammates after scoring a goal against UAE during their Asian Cup semi-final soccer match at the Newcastle Stadium in Newcastle January 27, 2015. REUTERS/Jason Reed (AUSTRALIA - Tags: SPORT SOCCER)

Australia's Trent Sainsbury (R) heads the ball to score a goal against UAE during their Asian Cup semi-final soccer match at the Newcastle Stadium in Newcastle January 27, 2015. REUTERS/Jason Reed (AUSTRALIA - Tags: SPORT SOCCER)

Australia's players pose for a team photo before the start of their Asian Cup semi-final soccer match against UAE at the Newcastle Stadium in Newcastle January 27, 2015. (Top L to R) Goalkeeper Mathew Ryan, Matthew Spiranovic, Mathew Leckie, Jason Davidson, Trent Sainsbury, Mile Jedinak, (bottom L to R) Robbie Kruse, Massimo Luongo, Mark Milligan, Tim Cahill and Ivan Franjic. REUTERS/Jason Reed (AUSTRALIA - Tags: SPORT SOCCER)

Australia's Trent Sainsbury (R) heads the ball to score a goal against UAE during their Asian Cup semi-final soccer match at the Newcastle Stadium in Newcastle January 27, 2015. REUTERS/Jason Reed (AUSTRALIA - Tags: SPORT SOCCER)