Kolo Toure is due to attend a Manchester City disciplinary hearing into his failed drug test.
As revealed by skysports.com last week, City have opened a disciplinary case against the defender which Toure is contesting.
The Ivory Coast centre-half has served a six-month Football Association suspension, imposed after he tested positive for a banned substance in February this year.
But the terms of his ban, and subsequent difficulties in arranging a suitable date, mean Toure is yet to face sanction from his club.
The 30-year-old, who maintains he took one of his wife's slimming pills without realising it contained a banned ingredient, has fallen out of the first-team picture in his absence.
Roberto Mancini's preferred pairing is Vincent Kompany and Joleon Lescott, and Toure has been restricted to one substitute's appearance in the league this season.
But the Italian will continue to consider Toure for selection pending the outcome of City's investigation.