Former Arsenal captain William Gallas will undergo a medical at Tottenham on Friday ahead of a free transfer move to White Hart Lane, Soccernet understands.
Gallas, 33, looks set to be added to Spurs' defensive ranks as Harry Redknapp looks to strengthen his squad before the end of the transfer window.
Spurs looked decidedly unconvincing at the back during their 3-2 Champions League qualifying play-off defeat to Young Boys, and the arrival of Gallas would offer them some much-needed top level experience.
Gallas has been available on a free transfer since June, having been released by Arsenal after being unable to agree a new contract at Emirates Stadium.
And the France international, who played for Les Bleus during their disastrous World Cup campaign, will become only the sixth player to have joined Spurs having played for their bitter north London rivals.
The last player to do so was David Bentley, while Rohan Ricketts, David Jenkins, Laurie Brown and Jimmy Brain are the others to have crossed the divide.
Gallas played for Arsenal for four years after moving from Chelsea in 2006, making 101 Premier League appearances for the Gunners.