Tottenham are interested in Ajax centre-back Davinson Sanchez, Sky Sports News understands.
The 21-year-old has won two caps for Colombia and scored six goals in his first season in Holland's Eredivisie, making a total of 43 appearances after signing last summer from Atletico Nacional.
Tottenham are yet to make any additions to their squad this summer and Sky Sports News understands centre-back is not one of Mauricio Pochettino's main priorities.
Pochettino is understood to be looking for a right-back, with Kyle Walker having departed for Manchester City and Kieran Trippier out through injury, as well as a forward and midfielder.
Sky Sports News reported earlier on Friday that Tottenham have opened talks with Celta Vigo to sign midfielder Pape Cheikh Diop.
However, Sanchez could become an option for Tottenham if one of their other centre-backs moves on, with the future of Austria international Kevin Wimmer remaining uncertain.
The club had previously been interested in Argentina U20 defender Juan Foyth, but that was cooled because of Estudiantes' asking price.