Tottenham have launched a probe over the negative leaks coming from the dressing room.
The Daily Mail says Tottenham have launched a mole hunt, with officials seeking to identify players who may have been behind negative stories that have appeared in the media over the last few weeks.
Mourinho was particularly unhappy last month to read of complaints about his training sessions, which it was alleged some players find boring and predictable.
The claims drew an angry response from Mourinho, who described his methods as "second to nobody in the world" following Tottenham's 2-1 defeat at West Ham.
Spurs broke up for the international break with victory over Aston Villa last week.
