Chelsea have left Nemanja Matic and Diego Costa out of their overseas squad.
The pair will not travel to China and Singapore with his teammates next week, says The Sun.
Antonio Conte is giving the Serbian midfielder a chance to sort out his future, with Costa still in Brazil as he discusses an Atletico Madrid return.
Matic reported for training with the rest of the Blues squad but spent much of his time alone.
United boss Jose Mourinho is desperate to sign the ex-Benfica playmaker but Chelsea are reluctant to strengthen a rival.
And after Old Trafford chiefs nabbed Romelu Lukaku from under the Blues' noses, a Juve move seems more likely.