The Australian Open will begin on February 8, three weeks later than originally scheduled, the ATP have confirmed.
Quarantine laws for international travellers have wreaked havoc with the initial plans for the event but, in conjecture with the ATP and WTA, Tennis Australia have now been able to confirm a date.
The ATP season has also seen its first few weeks rearranged, with it now starting at Delray Beach on Jan 5 followed by a one-off ATP250 event in Antalya, Turkey.
Australian Open qualifying will also take place early January, but in Doha instead.
There will then be a two week pause in the schedule to allow for quarantining to be done in Australia before Melbourne hosts two AT250 events and a shortened ATP Cup.
"The reconfigured calendar for the start of the 2021 season represents a huge collaborative effort across tennis, under challenging circumstances," an ATP statement read.
"Together with the support of our tournament and player members, partners, and Tennis Australia, we have been able to adapt and create an exciting start to the season.
"Health and safety will continue to be paramount as we navigate the challenges ahead, and I want to thank everyone involved for their commitment to finding solutions to launch our 2021 season.”
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