Manchester United defender Chris Smalling was reportedly on the end of some stern words from Sir Alex Ferguson following the club's 1-0 defeat to Manchester City.
The 22-year-old was at fault for City's winner on Monday, when he failed to pick up Vincent Kompany from a corner in first-half stoppage time.
United boss Ferguson told reporters after the match: "If you lose a goal at a set-piece you only have yourself to blame at this level."
The result dropped United to second spot in the Premier League table.
