Chelsea have reportedly ordered the players who are currently overseas to return to England as the Blues prepare for potential Premier League return plans.
Willian, Christian Pulisic, Emerson Palmieri and Marcos Alonso are among those who have been granted permission to travel outside the UK by Frank Lampard during the Premier League postponement.
According to a report from ESPN, Chelsea have now asked them to return by Sunday, May 3, although the club is also flexible to an extent as they recognise the difficulty of international travel; Willian, who is now in Brazil, in particular.
Unlike Arsenal, Tottenham Hotspur, West Ham and a few others who have opened their training grounds, Chelsea are yet to fully utilise the Cobham training centre.
Chelsea are reportedly still waiting for the outcome of the video conference meeting between 20 Premier League clubs on Friday which will discuss the possible resumption date of June 8.
The Premier League is hoping to reintroduce group training from around May 11 so the clubs would have three weeks of preparation before the remaining matches resume behind closed doors.
The UK government, however, is yet to give the green light to this plan as some details remain uncertain, the report claimed.