Transfer Deadline Day: Rat leaves as West Ham sign Armero
Romanian Razvan Rat has left West Ham while the club signed Napoli and Colombia defender Pablo Armero on loan.
Rat, 32, who arrived in the summer on a free transfer, departed by mutual consent, while striker Modibo Maiga agreed a loan spell at QPR.
Attacking left-back Armero, 27, has made 18 appearances for his Italian club this season, including in a 2-0 Champions League victory over Arsenal.
He joined Napoli in the summer after a loan spell from Udinese last season.
Armero swaps a team third in Serie A for one 18th in the Premier League.
He was allowed to leave Napoli after they signed Algeria left-back Faouzi Ghoulam, 22, from St Etienne for an undisclosed fee.