Chelsea have asked their players to return to the United Kingdom by May 3 with the Premier League stepping up plans to complete the season from June 8.
Christian Pulisic is currently in his hometown of Hershey, Pennsylvania in the United States, and he is among a group who will need to return by Sunday which also includes Willian and Emerson, who are both in Brazil.
It is understood that Chelsea will be flexible with any player who suffer travel disruptions due to the coronavirus outbreak.
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"I’m back in the United States and it’s definitely good to be back with the family at this time," Pulisic said in an interview with the Chelsea website last week.