The 39-year-old - who is currently in charge of fellow League Two outfit Crawley Town - has impressed with the Red Devils since arriving in May 2017.
County, however, are bottom of the table after failing to win any of their opening five games while Kewell's side sit relatively pretty in mid-table.
Scouser - and Liverpudlian - Nolan was given the Notts County job in January 2017.
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