Tottenham are keen on the Marseille right-back Hiroki Sakai, Sky Sports News understands.
However, Spurs do have concerns about signing a player that is 29 years old. The Japan international fits the right-back profile that manager Mauricio Pochettino is looking for, but the club are targeting younger players this summer, preferably under the age of 23.
Pochettino wants to improve both full-back positions, and the club will listen to offers for both right-backs Kieran Trippier and Serge Aurier.
Should Spurs miss out on their ideal replacements, Sakai may become a more serious target towards the end of the window.