Manchester United have signed full-back Tyrell Malacia for £13m from Feyenoord on a four-year contract until June 2026, with the option of a further year.
The Netherlands defender, 22, made 136 appearances for his childhood club Feyenoord.
Malacia is the first new arrival of Erik ten Hag’s tenure as United manager following his move from Ajax.
“It’s an incredible feeling to have joined,” he said.
Malacia added: “This is a new chapter for me, a new league with new team-mates and a tremendous manager leading us. I know from playing against his teams in the Eredivisie, the qualities that he has and what he demands of his players.
“While I know that I am still young and will continue to develop, I can promise the United fans that I will leave everything on the pitch every time I pull on the red shirt.”
He had been in talks with French club Lyon before United stepped in.
It had been hoped the deal for the Dutch international would be done on Monday but it was delayed waiting for a work permit.
It is anticipated Malacia, who plays on the left side, will be part of the United squad that leaves for its pre-season trip to Thailand and Australia on Friday afternoon.
