Albion marksman Leo Ulloa is on the brink of completing a move to Leicester for a fee in excess of £7 million.
Ulloa missed the Seagulls' 3-1 friendly defeat by Real Betis in Spain tonight.
He is expected to fly to Austria, where Leicester are based for a training camp, to discuss personal terms with the Premier League newcomers after the clubs finally thrashed out an agreement for his sale.
Leicester had a fourth offer of £6.25 million for Ulloa rejected last week.
Their fifth bid has been sanctioned by Albion chairman Tony Bloom and Ulloa is now on the brink of fulfilling his dream to play in the top flight.
The fee is a record for both clubs. It dwarfs the sum of around £3 million received by Albion for midfielder Liam Bridcutt's move to Sunderland in January and smashes the £5 million Leicester paid for former Albion loan forward Ade Akinbiyi 14 years ago.
Ulloa has scored 26 goals in 58 appearances for Albion since arriving on the South Coast from Spanish club Almeria for around £2 million during the January 2013 transfer window.
The target man, 28 later this month, still has three years remaining on his contract at the Amex but has become increasingly frustrated by what he regards as a lack of investment in the squad.
Ulloa will team up with former Albion centre-half Matt Upson in the East Midlands. Upson rejected a new one-year contract with the Seagulls to join Leicester in May.