Rotherham United boss Paul Warne believes it would be 'ridiculous' to sell star midfielder Matt Crooks to a League One rival.
The Rotherham Advertiser claims that the Millers have already turned down a £400,000 bid from their League One rivals, Ipswich Town.
Sunderland are among a host of League One and Championship clubs reportedly chasing his signature.
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However, Warne believes if the right the right bid came in for the midfielder, it would be hard to stand in Crooks' way.
Manager Paul Warne said: "We don’t want to lose our best assets, even more so not to a League One rival. That would make it ridiculous.
“However, as with everything, there is a figure where it becomes impossible not to let it happen. As far as I am aware, no one is anywhere near that figure yet.”
Crooks played an integral role in the Millers 2019/20 League One promotion campaign and scored seven times, providing three assists in the Championship last season.
The 27-year-old is approaching the final year of his contract and if Sunderland are to pry him away from the New York Stadium, they would face competition from second-tier suitors; Derby, Peterborough and Middlesbrough.
The latter of the three Championship clubs are also reportedly interested in signing Sunderland's out-of-contract defender, Denver Hume.
Neil Warnock is undertaking his own rebuild at the Riverside this summer and is an avid admirer of the Black Cats youngster.
