The Gunners are already eyeing up a new right back after Bacary Sagna left North London for Manchester City, whilst a new centre back should be on the way with Thomas Vermaelen the subject of bids from Manchester United. Yet, manager Arsene Wenger could be looking to target another area of his defence for improvement.
Kieran Gibbs seems firmly entrenched as the first choice left back at the Emirates Stadium, but with a history of injuries, it would be no surprise to see Arsenal snap up another left sided full back. Spaniard Nacho Monreal has been on the fringes of the team and has subsequently been linked with a move back to La Liga with Athletic Bilbao - and if he does leave then Wenger may already have his replacement in mind.
Colombian left back Armero has established a strong reputation over his time with Udinese and Napoli in Italy, but after falling out of favour with the latter, he made the move to the Premier League with West Ham United, joining on a six-month loan deal in January. He didn't make much of an impact at Upton Park, and ultimately needed a strong World Cup to put himself in the shop window.
Fortunately for the 27-year-old, that's just what he's had. Armero scored Colombia's first goal of the tournament against Greece, and continued to impress with his marauding runs forward as Jose Pekerman's side became one of the teams of the tournament.
Armero is now owned by Udinese, but it's believed that he wants to make a permanent move to England having had a taste last season. With Monreal clearly behind Gibbs in the pecking order and with suitors growing in Spain, adding the more physically gifted Armero in his place could be an excellent depth move from Wenger - even if he's not the big name signing Arsenal fans are looking for.