Davinson Sanchez is yet to complete a medical or have a work permit granted ahead of his move to Tottenham, according to reports.
Last week, Spurs announced that the 21-year-old Colombia international is set to join the club pending a medical and work permit.
The centre-back will arrive from Ajax for a club-record fee of around £40 million.
According to Football.London, Tottenham hope Sanchez will complete a medical and be granted a work permit this week.
As a result, the report claims there is an outside chance the defender will be able to make his Spurs debut against Burnley at Wembley on Sunday.
Below you can watch Sanchez score a stunning overhead kick against AZ Alkmaar in the Eredivisie last season.