The United midfielder returned to action after an 18-month absence in a reserve team game against Burnley at Altrincham on Thursday night.
Hargreaves completed 45 minutes of the 2-0 win and will make another appearance with the second string against the same opposition at Accrington next week.
Back in the frame: Owen Hargraves turns out for Manchester United's reserves
Ferguson already has a comeback plan in place for the Englandinternational and says he could have a major role in the title run-in.
'Hargreaves made his comeback, which is a big boost to the boy,' said Ferguson.
'I am delighted for him. He has been out of the game for 18 months,which is very difficult. He will need a couple of games more with thereserves.
'After that he should be back in the first team squad. It is a good one to get at this time of the season.'
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