The Chelsea star - who has tested negative for the coronavirus - was present at the club's first day of restricted training on Tuesday.
However, he was given compassionate leave the following day due to concerns over the ongoing pandemic, and it's said he received the full backing of his manager Frank Lampard.
It comes as Watford defender Adrian Mariappa has confirmed he is one of three people to test positive for coronavirus at the club.
Two staff at Watford and Burnley's assistant manager Ian Woan have also tested positive, while two other individuals at a third club have not been named.
Miarappa told the Daily Telegraph newspaper: "It was a big surprise because I haven't really left the house.
"Apart from some exercise and the odd walk with the kids, I've mainly just been homeschooling and keeping fit.
"My lifestyle is very quiet, certainly no parties or going out or anything, so I really don't know how I got it."
The Jamaica international noted he has had no symptoms and felt "as fit as ever".
He said: "It's quite scary how you can feel absolutely fine and not really have left the house, and yet still get the virus.
"If it wasn't for the fact I had gone back to training and had this test, then I'd never have found out that I had the virus and I would just be getting on with things as normal. That's obviously quite a strange thought."
Those who have tested positive will now self-isolate for seven days.