I think any deal now will be broken down significantly, rather than devalued significantly.
The EPL needs to be the target market as they will be almost unaffected by COVID in terms of revenue, however I think a general re-assessment of the transfer market will take place anyway.
If, purely for argument's sake, he has a genuine value of £25 million, I think that instead of offers around that we would see greatly extended payment terms, much bigger % of future profit clauses, more scope to swap or loan players and in general, any other clauses that maintain the value but spread the payments out.
On the face of it that would not really work for us given that we need to put a challenge together, however in reality, every transfer will follow a similar pattern and our spending power off the back of a sale would remain largely equivalent to pre Covid times.