Mount and Chilwell are isolating after being in close contact with Scotland’s Billy Gilmour – their Chelsea teammate – after the goalless draw at Wembley on Friday night.
Gilmour has tested positive for Covid-19 since then and must isolate for 10 days, and while the entire England squad has returned negative tests, precautions have been taken over the two Chelsea and England stars.
Discussions are ongoing between England chiefs and Public Health England over whether Chilwell and Mount will be available at Wembley on Tuesday and Southgate admits he is unlikely to know if he can select them until the morning of the match.
‘We don’t know at the moment, there’s obviously got to be quite a doubt but there’s still a lot of discussions and investigations going on behind the scenes,’ Southgate told a press conference on Monday evening.
‘At the moment they’re isolating and we just have to find out over the next 12 hours or so.’
Southgate would not rule either man out just yet, hoping they will be available, but also knowing that both could have to do the same as Gilmour and isolate for 10 days.
There have been questions over why only Chilwell and Mount must isolate for England and how only Gilmour can need to isolate for Scotland, questions which Southgate could not really answer.
‘I don’t know all of the facts behind that but clearly it’s nothing to do with behing on the pitch, that’s why thre’s no issue with teams training, for example,’ said the England boss.
‘We’re just waiting to hear more information at this moment in time.
‘I don’t want to cause a drama for Scotland but if you’re all in the dressing room together, where does everything stand?’
For more stories like this, check our sport page