Watford defender Adrian Mariappa says he is one of three people who tested positive for coronavirus at the club.
On Tuesday, it was announced there had been six positive tests across three Premier League clubs.
Two staff at Watford and Burnley assistant manager Ian Woan also tested positive, while the two others at a third club have not yet been revealed.
“It was a big surprise because I haven’t really left the house,” Mariappa, 33, said, also speaking to the Telegraph “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 said he has had no symptoms and felt “as fit as ever”.
He added: “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.”
Players and staff who have tested positive will now self-isolate for seven days.
The six positive results came as squads started non-contact training on Tuesday, as the Premier League steps up plans for a restart.
A total of 748 players and staff from 19 clubs were tested. Norwich City did their tests on Tuesday and did not return any positives results