Tottenham may be forced into doing some transfer business after the sale of Kyle Walker to Manchester City.
The England international cost Pep Guardiola's side a whopping £50m, a fee that could help ignite Spurs' summer with the Lilywhites yet to make a signing.
The north London side already have Kieran Trippier on their books, but what other defenders from around Europe could Tottenham be targeting?
1. Ricardo Pereira - Porto
The Portugal international was an important part of the Nice team that finished third in Ligue 1, having spent two seasons away from Porto on loan with the French side.
With two goals and four assists Pereira is now a man in demand, and Tottenham should definitely consider turning their attentions towards the 23-year-old now that Walker is no longer in the picture.
2. Joao Cancelo - Valencia
Valencia haven't been great in recent years, finishing 12th in the 2016-17 La Liga, but Cancelo looks a really interesting proposition for clubs like Tottenham.
The 23-year-old made 35 league appearances for Valencia last season, contributing a goal and four assists, and could be the ideal replacement for Walker.
3. Benjamin Henrichs - Bayer Leverkusen
Spurs would have to pay through the nose in order to sign Henrichs, given his tender age and evident ability, but his potential definitely outweighs any potential risk investment.
The 20-year-old already has three appearances at international level with Germany, helping Joachim Low's side win in the Confederations Cup and could look for a move this summer after Leverkusen's poor 2016-17 season.
4. Cedric Soares - Southampton
The transfer wouldn't thrill Tottenham fans but the team's right-hand side of defence would arguably be even more defensively stable than it was with Walker.
The Portugal international has been a steady player at Southampton, is a proven Premier League performer and would be an astute signing for Mauricio Pochettino's side, even if he lacks the attacking punch Walker delivers.
5. Oscar de Marcos - Athletic Bilbao
With a goal and four assists to his name last season, De Marcos was one of Athletic's best players and has developed a reputation as one of the most consistent right-backs in La Liga.
Spain's wealth of options at right-back means the 28-year-old is yet to make an appearance for his country but his pedigree is not doubted in his homeland.
6. Djibril Sidibe - Monaco
Another Monaco player to receive a lot of attention after their Ligue 1 title-winning antics of last year, signing Sidibe would be a real statement of intent from Tottenham.
Monaco would be difficult to negotiate with, as they are eager to keep all of their first-team stars, but Spurs need another right-back and the attacking Sidibe would certainly fit right in at Wembley next season.
7. Joel Veltman - Ajax
Spurs have been linked with the 25-year-old this summer, with Veltman impressing last season after helping Ajax to the final of the Europa League.
Buying from the Eredivisie is definitely a risky business, as fans can never be sure whether their club are signing Luis Suarez or Afonso Alves, but Veltman definitely has what it takes to succeed Walker.