Leroy Sane has stepped up his recovery from a serious injury but Pep Guardiola cannot guarantee that he will be at Manchester City when the January transfer window closes.
The Germany winger has not played since damaging his anterior cruciate ligaments in the Community Shield victory over Liverpool in August.
Sane, 23, revealed on Instagram that he was back working on the pitch, though the club have not yet put a date on when he will be ready to return to first-team action.
Editors' Picks
"When will he be back?