With the League One salary cap now fully enforced, the Black Cats could look towards younger players in a bid to bolster their ranks without eating-up space under the cap.
And a glance at the top flight shows some exceptional under-21 players who could be available.
So which Premier League youngsters could be on Lee Johnson’s transfer wishlist? We take a look:
So which Premier League youngsters could be on Lee Johnson’s transfer wishlist? We take a look:
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