Manchester United could reportedly be without Paul Pogba for Sunday's showdown with Manchester City as the midfielder is suffering from a minor injury.
Pogba is rumoured to have sustained the problem during the Red Devils' 2-1 comeback win against former club Juventus on Wednesday evening.
The Times reports that the France international sat out full training at United's Carrington training base on Friday, rendering him doubtful for this weekend's Manchester derby.
The rest of Jose Mourinho's squad took part in the penultimate session before the trip to the Etihad Stadium, with another planned for Saturday.
Pogba netted twice for United in this fixture last season and has five goals in all competitions this term.