Manchester United have completed the £55million move of Lisandro Martinez from Ajax to continue their summer rebuild under Erik ten Hag.
Ten Hag had targeted a new centre-back in this transfer window and worked with the Argentina international in his previous three seasons at Ajax.
United and Ajax quickly came to an agreement over the £55m fee earlier in July and Martinez has signed a five-year deal worth £120,000 a week with an option for an extra year.
United will pay an initial £46.