The Blues tackle Australia's Perth Glory on July 23 in their first pre-season game.
But now there's a twist and that's because Chelsea have weighed in with a bid for the Napoli player which seems to add further fuel to the fire that Maurizio Sarri is about to join Chelsea as manager.
Stars such as Pedro, Cesc Fabregas, Marcos Alonso and Alvaro Morata who were not involved in the World Cup with their worldwide sides reported for duty over the weekend.
Antonio Conte took charge of Chelsea's preseason preparations with a double session at Cobham on Monday, sources have told ESPN FC.
Barcelona’s Paulinho returns to China's Guangzhou
Paulinho rose to prominence in his homeland for Sao Paulo-based Corinthians before he moved to Tottenham in 2013. Brazil worldwide Paulinho has returned to the Chinese Super League .
It is understood Conte held meetings and, unless the situation changes, will fulfil the final year of his contract.
Numbers were diminished due to several players' involvement in Russian Federation, but those who didn't feature in Russian Federation were put through their paces with fitness and stretching exercises.
Conte is renowned for his highly vigorous approach to approach to preseason and several Chelsea players have publicly admitted to struggling with his gruelling summer programmes, though weeks of double sessions at Cobham provided the foundation for the club's surprise run to the Premier League title in the 2016-17 campaign.
Ross Barkley, Pedro, Cesc Fabregas, Tiemoue Bakayoko Marcos Alonso and David Luiz were among the big names to have returned.