West Ham are keeping tabs on highly-rated Leicester City defender Joe Mattock, skysports.com understands.
Mattock is regarded as one the most promising young players in England and he is the second youngest player to represent England Under 21s.
The left-back made his debut for Leicester at the tender age of 16 and he has been earning rave reviews at the Walkers Stadium.
The 18-year-old is regaded as one of the best young talents outside the Premier League and Leicester are widely believed to have fieled a number of enquires from clubs for Mattock.
West Ham have held a long-term interest in Mattock and new Hammers boss Gianfranco Zola is monitoring his progress.
The likes of Liverpool, Aston Villa, Everton and Sunderland have been credited with an interest in Mattock, but West Ham are hoping to steal a march on their rivals with doubts continuing to surround the future of on-loan defender Herita Ilunga.
Ilunga is on a season long-loan from Toulouse, but the player has suggested he would be interested in a move to a bigger club if an offer came along and Mattock is thought to be on Zola's list of potential signings.
Leicester are keen to keep hold of their prize asset as they look to win promotion from League One, but they could face a battle to ward off suitors when the transfer window reopens next month.