File photo dated 23-06-2018 of Australia's Nick Kyrgios. Nick Kyrgios could miss the Australian Open after testing positive for Covid-19 a week before his home grand slam. Issue date: Monday January 10, 2022.,Image: 375807036, License: Rights-managed, Restrictions: FILE PHOTO Editorial use only, no commercial use without prior permission., Model Release: no, Credit line: Profimedia