Almero joins the Hammers on loan until the end of the season.
Napoli left-back Pablo Armero has joined West Ham United on-loan until the end of the season as cover for the injured Joey O’Brien.
— West Ham United FC (@whufc_official) January 31, 2014
The Colombia international has been in Naples for 12 months following a move from fellow Serie A club Udinese and has played 33 times for the side.
Armero is a regular in the national team and has 43 caps to date and the 27-year-old is sure to be part of the 23-man squad for the 2014 World Cup in Brazil.
The defender arrives at Upton Park with plenty of experience having played in the Champions League this season – including the 2-0 triumph over Arsenal.
Whilst Armero generally operates on the left side of defence, the South American can also play a more advanced role down the flank.