Tottenham have opened talks with Fiorentina defender Nikola Milenkovic over a possible move, 90min can confirm.
The 23-year-old has been in advanced negotiations with London rivals West Ham over a £14m switch to the East End, but that move has been dragging its feet over personal terms and third party fees.
There has been no progress made between Milenkovic's representatives and West Ham, despite the club's willingness to pay Fiorentina's asking price, and that's opened the door for Tottenham - who are equally as keen to reinforce their backline - to swoop in.
90min understands that preliminary talks have been held over a move to North London, although the Serbian is not the only central defender under consideration. Cristian Romero has already finalised a move from Atalanta, but Bologna's Takehiro Tomiyasu remains in the club's thinking.
Spurs have also had discussions with Fiorentina over highly-rated striker Dusan Vlahovic. The 21-year-old is on the radar of some of Europe's biggest clubs, including Atletico Madrid, but has frequently been linked with a move to the Tottenham Hotspur Stadium. Conversations have also taken place with Vlahovic's entourage, 90min can reveal.
The main priority for Tottenham remains keeping hold of Harry Kane, who is now back at the club after an extended period of leave after Euro 2020. He's been at loggerheads with Daniel Levy over his desire to move on and win trophies, but Spurs' chairman has no desire to let Kane join Manchester City, or anybody else for that matter.
As for West Ham, the stalling of a move for Milenkovic is the latest setback in what's been a frustrating transfer window for David Moyes. The Scot needs to add depth to his squad to support the club's venture into this season's Europa League, but goalkeeper Alphonse Areola (on loan) has thus far been the only addition to the playing staff.
Interest remains in signing an attacking midfielder - potentially Jesse Lingard once again - as well as a central defender, while there's also hope that the goalscoring burden can be lifted off the shoulders of Michail Antonio. He remains West Ham's only senior striking option, following the departure of Sebastien Haller to Ajax in January.