Manchester United has signed Argentina goalkeeper Sergio Romero to a three-year deal on a free transfer.

The 28-year-old Romero previously played for United manager Louis van Gaal at Dutch club AZ Alkmaar.

Romero will provide competition for Spanish 'keeper David De Gea — currently pursued by Real Madrid — while Victor Valdes is set to be sold after Van Gaal said he refused to play in the reserves.

"Sergio is a very talented goalkeeper," Van Gaal said. "He was a young keeper during my time at AZ Alkmaar and I am delighted he is joining Manchester United."

Romero has played 62 matches for Argentina and played in the 2014 World Cup final against title-winner Germany.

He made his senior club debut at Racing Club in 2007 before moving to AZ and most recently Italy's Sampdoria.