Alan Hutton is expected to make his Barclays Premier League debut against Manchester United on Saturday after Tottenham confirmed his arrival from Rangers.
The 23-year-old Scotland right-back is the third signing at White Hart Lane in the January transfer window, with Jonathan Woodgate and Chris Gunter already bolstering Juande Ramos' defence.
Hutton arrived at White Hart Lane for £8million and on a four-year deal after Rangers received "an offer we couldn't turn down", according to boss Walter Smith.
Hutton said on his former club's official website: "There is no doubt my transfer to Tottenham is good not just for me, but for the club."
Spurs initially made a bid at the start of the transfer window but Hutton turned down the chance to move south, before agreeing to a deal when the Premier League club went back in for him.
Damien Comolli, Tottenham's sporting director, watched Hutton before he impressed in Scotland's defeat to Italy last November. Manchester United were also linked with him while he progressed at Ibrox.
Pascal Chimbonda's agent last week admitted the defender was frustrated by Spurs targeting two players, Hutton and Gunter, in his position.
Hutton gives Ramos more options in defence as Chimbonda has been relied upon at right-back, even moving inside to centre-back when Ledley King and Michael Dawson have been injured or Younes Kaboul has been dropped.
Kaboul insists the arrival of defenders at Spurs does not compromise his own position at the club.
"I feel great at Tottenham and I still want to give my best for this team," he said.
Brazil left-back Gilberto is also set to arrive, from Hertha Berlin, before the end of the transfer window.
Young-Pyo Lee is the current left-back and Jamie O'Hara has deputised there as well while Gareth Bale has been out with a foot injury.
The full extent of Bale's injury will not be known until he is out of plaster next month, when an assessment will be made by Spurs' medical staff.
Wayne Routledge is expected to join Hossam Ghaly as a departure from White Hart Lane this month, with Aston Villa understood to be interested in the former England Under-21 winger.
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