Tottenham have agreed a deal with Portsmouth to sign striker Peter Crouch for an undisclosed fee.
The 28-year-old, 6ft 7in England international scored 16 goals in all competitions for Pompey last season.
"He is different to almost anyone else in the league in terms of his size and the way he plays the game," said Tottenham boss Harry Redknapp.
A Portsmouth statement indicated that Crouch's sale was dictated by financial issues affecting the south-coast side.
Crouch returns to the club where he began his career as a trainee.
The fee is believed to be in the region of £10m and the contract reported to be for five years and worth £70,000 a week.
Crouch agreed personal terms and passed a medical on Monday, joining strikers Robbie Keane, Jermain Defoe and Roman Pavlyuchenko at White Hart Lane.
With Crouch, Robbie (Keane) Jermain Defoe and (Roman) Pavlyuchenko we have a good strikeforce
Spurs boss Harry Redknapp
"We now have four top strikers which is what you need at every club and so I am delighted to have Crouchy," added Redknapp.
The surfeit of strikers leaves Darren Bent little option but to search for a move away from north London.
The England international has been a target of Sunderland - the team Crouch rejected a £12m move to last week - after indicating a desire to remain in the south.
But an improved offer is likely to sway Bent, who has not travelled to China as part of Tottenham's squad for the Barclays Asia Trophy, which starts on Wednesday.
"We now have four strikers as it looks like Darren Bent could move," stated Redknapp. "I believe he is close to doing a deal with Sunderland.
"With Crouch, Robbie Keane, Jermain Defoe and Roman Pavlyuchenko we have a good strikeforce."
Crouch scored 16 goals in all competitions for Portsmouth last season and, in a club statement, Pompey acknowledged the need to cash in on their star striker.
"His sale was necessitated by the club's commitment to repay scheduled debts while we are in a transitional period of completing the takeover," said a spokesman on the club's website.
Pompey announced on 21 July they have agreed in principle to a takeover by United Arab Emirates tycoon Sulaiman Al Fahim after the 32-year-old passed the Premier League's fit and proper person test.
The statement also revealed that Portsmouth will now look to "add fresh faces to the first-team squad as soon as possible".
Tottenham will be the third club at which Crouch has played under Redknapp following spells with the 62-year-old at Southampton and Portsmouth in the past.
He will also link up with his former Pompey strike partner Jermain Defoe, who returned to Spurs for £15m in January.
Crouch first left Spurs in July 2000 to join Queens Park Rangers before moving to Portsmouth for his first spell at Fratton Park in 2001.
He has subsequently played for Aston Villa, Norwich (on loan), Southampton and Liverpool before rejoining Portsmouth in July 2008.
Crouch has made 34 appearances for England, scoring 16 goals.