And it's been the greatest baptism of fire for all rookies on the world's second biggest circuit.

Players lived in a 'bubble', meaning they could only visit the course and designated hotel.

England's Jordan Smith withdrew after only 14 holes of last month's Andalucia Masters in Spain, citing mental fatigue with the 'bubble'.

"I think it's a very personal thing, some blokes are really struggling with it because they like the social aspect of golf and tour life and some people couldn't give a stuff and they're finding it as normal," Golf Australia media manager Mark Hayes said shortly after.

The European Tour had a four-month break due to COVID-19, returning in July.

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Murray missed the first five events and made his debut in the Celtic Classic, playing seven tournaments.