Chelsea boss Graham Potter must decide next month about recalling Callum Hudson-Odoi from Bayer Leverkusen.
The winger is on a season-long loan at Bayer, having made the move when Thomas Tuchel was in charge at Chelsea.
But with Potter now Blues manager, there's talk of Hudson-Odoi returning to London in January.
Kicker says the option to end the loan - which is unilateral - will run to the end of the year.
For their part, Bayer are eager for Hudson-Odoi to see out the season.