Former Nottingham Forest star Ian Woan is one of six people connected to three Premier League clubs to test positive for coronavirus.
Woan is currently assistant manager at Burnley, who confirmed the 52-year-old was "asymptomatic and is currently safe and well at home".
Top flight teams voted unanimously to step up their return to action at Monday's shareholders meeting, allowing players to train in small, socially-distant session as part of phase one.
Covid-19 tests were conducted across Sunday and Monday as part of the league's partnership with the Prenetics consortium, with the Premier League confirming six individuals have tested positive for the disease.
A statement read: "The Premier League can today confirm that on Sunday 17 May and Monday 18 May, 748 players and club staff were tested for COVID-19. Of these, six have tested positive from three clubs.
"Players or club staff who have tested positive will now self-isolate for a period of seven days.
"The Premier League is providing this aggregated information for the purposes of competition integrity and transparency.
"No specific details as to clubs or individuals will be provided by the League and results will be made public in this way after each round of testing."
However, Burnley later confirmed Woan - who made more than 250 appearances for Forest between 1990 and 2000, scoring 40 goals - was one of the six.
A club statement read: "Burnley Football Club can confirm that after completing a Covid-19 test on Sunday, 17th May, assistant manager Ian Woan has tested positive.
"The Burnley first team squad and playing staff were all tested last weekend, ahead of a return to training.
"In line with strict Premier League requirements and following a positive test, Ian will now self-isolate for a period of seven days, with a view to being tested again week commencing Monday, 25th May.
"Ian is asymptomatic and is currently safe and well at home. He will remain in close communication with club personnel regarding his re-engagement in training once he is clear of the virus."
The PA news agency understands that only 19 clubs were reflected in those 748 tests as the final team was tested on Tuesday, meaning their results are set to be included in Saturday's update.
Tests are due to take place twice a week, with 40 tests being carried out at each club in each session.
Discussions around contact training will take place when Premier League clubs gather for their next shareholders' meeting next Tuesday.
