Albion are interested in Chesterfield's captain and 24-year-old Scottish central midfielder Peter Leven.
The Seagulls had a bid rejected by the League Two club earlier this month.
They could still move for Leven before the transfer window shuts on Thursday, especially if unsettled skipper Dean Hammond is sold.
Leven had spells with Rangers and Kilmarnock before joining Chesterfield on a free transfer in August.
He is a Glaswegian like Albion's recent midfield recruit, former Falkirk captain Steven Thomson.
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