Denmark right-back Lars Jacobsen has completed his move from Blackburn Rovers to West Ham after the Premier League approved the deal. The move was sealed late on transfer deadline day, but checks were being made to ensure the relevant paperwork was submitted before the 6pm deadline.
The 30-year-old moves to Upton Park on a free transfer.
Jacobsen has earned 35 caps for his country and played 16 times for Blackburn after joining them on a free transfer from Everton last summer.
Hammers boss Avram Grant, whose side have shipped nine goals in their opening three Barclays Premier League games, had made recruiting a new right-back a priority.
Jacobsen began his career at Danish side Odense and played for Hamburg, FC Copenhagen and Nurnberg before joining Everton two years ago.
Jacobsen played in all three of Denmark's matches at this summer's World Cup, where they failed to progress from their group.
