Celtic have made an approach for Tottenham left-back Ryan Sessegnon – but it is believed the finances of any potential deal have proved problematic.
The 20-year-old was highly rated as a teenager at Fulham but has struggled to break into the Tottenham side since making the move from Craven Cottage for £25m last summer.
Sessegnon managed only 12 appearances in all competitions last term and has since been pushed further down the pecking order following the arrival of Sergio Reguilon from Real Madrid.
A number of Premier League clubs are also monitoring the England U21 international's situation.
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Sessegnon became the youngest Spurs player to score in the Champions League with his strike against Bayern Munich last year.
Celtic are looking to sign a left-back before the October 5 deadline, with an improved offer for Charlton's Alfie Doughty also expected this week.
Summer transfer window - key dates and times
The summer transfer window closes at 11pm on Monday, October 5 with a feast of activity lined up on Transfer Deadline Day on Sky Sports News and across our Sky Sports platforms.
A domestic-only window for deals between the Premier League and EFL then runs from October 5 and closes on Friday, October 16 at 5pm. Follow all the news and analysis on SSN and across Sky Sports' digital platforms, including with our dedicated Transfer Centre blog.