Portsmouth manager Harry Redknapp has signed Tottenham trio Pedro Mendes, Sean Davis and Noe Pamarot.
The triple swoop is thought to have cost £7.5m and will take Pompey's spending this month to nearly £12m.
"I'm delighted to get three quality players I really needed and wanted," said Redknapp.
The club have already signed Zimbabwe international striker Benjani Mwaruwari for a club record fee of £4.1m and Poland forward Emmanuel Olisadebe.
Mendes, Davis and Pamarot, all 26, could play in Saturday's home game with Everton.
Redknapp added: "The side desperately needed improving and I always knew I had to put a team together that will get us out of trouble and back on track.
"I'm sure other clubs were interested in the players we've signed. I've never signed three from one club before all at once but these are top Premiership players and will be a massive asset to us."
Redknapp has also been linked with a move for two other Spurs players, Michael Brown and Anthony Gardner, as well as former Tottenham forward Steffen Iversen and Aston Villa midfielder Lee Hendrie.
Mendes, Davis and Pamarot joined Spurs in the summer of 2004 but have struggled for first-team opportunities recently.
Midfielder Mendes, who cost the club £2m from Porto, has played just six games in the 2005-06 campaign.
He said: "I had a good start in my career at Tottenham but obviously the last few months have not been very happy for me.
"I have made this move for my own happiness. I'm very proud that the manager here was so keen to sign me and I am going to do my best to help get the team out of trouble."
Former Fulham midfielder Davis has made just one appearance for Tottenham this season, playing in the shock League Cup defeat to Grimsby.
The former England Under-21 player said: "I've had my injury problems at Spurs over he last few months and it's been a bit of a nightmare training with the reserves and not getting a look-in with the first team.
"It's just great that the manager here came in for me. I could have moved in pre-season but decided to stay on and fight for my place. It didn't seem to make much impact with the manager at Tottenham."
French defender Pamarot spent most of the 1999-2000 season on loan to Portsmouth from Nice, but has struggled to make an impact since moving to Spurs.
Redknapp has funds at his disposal following the arrival of Alexandre Gaydamak at the club.
The Russian businessman has invested about £20m after agreeing to joint ownership with Milan Mandaric.