Chelsea star N'Golo Kante opted out of phase one training on Wednesday due to lingering health concerns linked to the coronavirus.
The France midfielder was among a number of players throughout the Premier League to skip small group training on Wednesday, which for many clubs was the first session back.
Kante reported for the first day of training at the club's Cobham HQ on Tuesday, but declined to return on Wednesday.
Sources claim the World Cup winner is particularly nervous about returning to action given the risks attached to playing while Covid-19 continues to kill hundreds of people per day.