Mauricio Pochettino claimed Chelsea and Romelu Lukaku both "agree" on the striker's absence from their pre-season tour to the United States.
Lukaku did not report to Cobham when training resumed in July and is not in Chelsea's squad for the trip.
The 30-year-old Belgium international has reportedly been the subject of interest from Juventus and Inter Milan.
"I think both the club and player are in a position that they wanted," said Chelsea boss Pochettino.
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"I think when you have this type of decision it's because all agree.