Manchester United boss Sir Alex Ferguson says they've been working on David De Gea's game in training.

He revealed that his coaching staff had been working on the 21-year-old Spaniard following the buffeting he received at set-pieces during the FA Cup defeat at Liverpool last week.

"We'll sort that out. We actually sorted it out in the second half at Liverpool," he said.

"They were young defenders and if we'd had Nemanja Vidic or Rio Ferdinand, that wouldn't have happened. We sorted that at half-time."