The signing of the Brazilian World Cup winner delighted manager Peter Reid, who had seen an initial work permit application turned down last week. Reid said: "He gives us options at left-back or centre-half."
Tottenham sealed the signing of Inter Milan midfielder Stephane Dalmat on a season-long loan.
The 24-year-old passed a White Hart Lane medical, while the club also brought in Charlton's highly-rated young full-back Paul Konchesky on a month's loan.
As part of the deal Spurs defender Chris Perry moved to The Valley for the same period of time.
Portsmouth beat a handful of Premiership rivals to secure the loan signing of West Bromwich Albion striker Jason Roberts.
Manager Harry Redknapp also landed Czech goalkeeper Pavel Srnicek despite the former Newcastle man having trained with Wolverhampton Wanderers all week.
However, Wolves boss Dave Jones did have some success, taking Aston Villa misfit Hassan Kachloul on a short-term loan.
Fulham manager Chris Coleman signed his former Wales team-mate Mark Pembridge from Everton on a permanent two-year deal.
Leicester also added to their squad, taking Ipswich striker Marcus Bent on loan for the rest of the season.