Watford captain Troy Deeney has said he will not return to training this week out of concern for his baby son's health.
Premier League clubs reached an agreement on Monday for players to return to training on Tuesday in small groups.
"My son is five months and he's had breathing difficulties. I don't want to come home to put him in more danger. You've got to drive in in your own kit, you can't have showers, then you've got to drive back home in the same dirty kit you've got.
"While we are getting tested and while we are going to be in a very safe environment, it only takes one person to get infected within the group. I don't want to be bringing that home."
Watford were due to return to training on Tuesday alongside other clubs but manager Nigel Pearson told the Times on Sunday that he would not force any player to return. Pearson also expressed his concern at the effect of football coming back too early.