RB Leipzig fullback Nordi Mukiele has been scouted regularly by Tottenham this season.
Sky Deutschland says Spurs representatives have attended RBL games regularly this term to follow the progress of Mukiele.
Having sold Kieran Trippier to Atletico Madrid last summer, Spurs are eyeing Mukiele as a direct replacement.
The 20 year-old has scored twice and produced two assists this term in 20 appearances this season.
Along with Mukiele, Norwich City right-back Max Aarons is also under consideration.