Wayne Rooney could return to the Manchester United starting line-up for Sunday's FA Cup third round tie with Liverpool at Old Trafford.
It appeared Rooney would be condemned to spend a spell on the sidelines when he limped off with an ankle injury at West Brom on New Year's Day.
However, the England forward startled many observers when he made his way back onto the field as United had already been reduced to 10 men.
That decision cost Rooney a chance to figure in Tuesday's win over Stoke.
But the 25-year-old has returned to training and could be in contention to face the Merseyside giants.
"If it had been serious Wayne would not have come back on last week," said Ferguson.
"Maybe it was not the right thing to do in terms of getting him ready for Tuesday's game. But he started work yesterday and we just hope that he will be all right for Sunday."