Hargreaves was released by Manchester United at the end of last season and is now a free agent, and Warnock feels that he is just the man that the newly promoted side are looking for.
The 30 year old has had no luck at all with injuries since joining United, a lot of the time he has sat out has been down to having tendonitis in both knees.
Warnock could do with the player’s Premier League experience as the Hoops look to improve their squad, ready for their first season back in the top flight.
It is believed that a lot hinges on if the midfielder will entertain a pay-as-you-play deal.
MLS sides Toronto and Vancouver are also interested.