The Sun says the striker, 28, increasingly believes he has no future under manager Andre Villas-Boas.
Adebayor has not started a Premier game this season — and has managed just 82 minutes on the pitch.
A Spurs source said: “Manu wants to play and he really hoped to be in with a chance of starting against Chelsea.
“Mentally he saw that game as a make or break for him at Spurs.
“It’s obvious now that AVB doesn’t fancy him and Manu thinks it’s better he left.”