Tottenham became the latest Premier League club to open their doors to players on Tuesday as part of the "Project Restart" plan to finish the English top-flight season.
The Premier League has been suspended since March 13 due to the coronavirus crisis but there is growing belief the campaign can be concluded over the summer months.
Resuming matches on June 8 is reportedly among the ideas set to be discussed when the Premier League's key stakeholders meet on Friday.
That would require full training to begin by May 18 and Premier League clubs are starting to work towards that date by giving players the option of using their training grounds.
Tottenham have followed Arsenal, West Ham and Brighton in allowing players to use facilities for individual sessions that conform to social-distancing guidelines.
"No more than one player per pitch will be permitted at any one time to undertake on-pitch exercise, with only a restricted number of the squad coming to the training centre each day," a Tottenham statement said.
"Each player will travel independently and arrive at the facilities already dressed in training wear before returning home immediately after they have concluded their session."
- 'Health concerns' - =====================
"We have been assured of the intentions of all that there would be no resumption unless guarantees of safety could be given to the players."