Jonny May has tested positive for coronavirus just eight days before the first Test between England and Australia, leaving the winger's availability uncertain.
May was named as part of Eddie Jones' 36-man touring squad for the three-Test series, which starts on July 2 in Perth.
The 32-year-old has played 69 times for England but could struggle to feature in the opening Test, with May having to spend seven days in isolation as local regulations in Australia stipulate.
May, who is England's second top try scorer in history, missed the Six Nations after undergoing knee surgery in January, making his international comeback in the 52-21 thrashing to the Barbarians last Sunday.
Head coach Jones could be without his star winger but refused to rule him out ahead of the clash with the Wallabies.
Squad update from Australia. pic.twitter.com/Hj5igigzLs— England Rugby (@EnglandRugby) June 24, 2022
"We're not going to rule Jonny May out at this stage. We'll just see how he is," Jones said on Friday.
"Potentially he'll be available next Thursday to train, so we'll have a look to see what he's like because he's experienced and he's showed in his first game back against the Barbarians that he's lacking game time and that he's got his best rugby ahead of him.
"We'll just monitor his situation and make an assessment closer to the day when he gets out."