John Terry shared a picture of a group of the players ahead of training and the club’s official Twitter account posted a picture of Diego Costa, Nemanja Matic and Baba Rahman.
Players involved in the knockout rounds of Euro 2016 and Copa America are still on holiday.
But notably Kurt Zouma was in Terry’s picture suggesting he may be ready for the start of the season.
Guus Hiddink replaced Mourinho on an interim basis guiding the Blues away from the relegation zone and up to 10th in the Premier League.
Conte will start work this week and is expected to push through a number of signings to restructure the squad.