Former Ajax star Rafael van der Vaart is amazed by their swoop for Southampton midfielder Dusan Tadic.

Ajax's deal for Tadic was confirmed last night, with the Serb moving to Amsterdam for a fee rising to €13.7m.

Van der Vaart declared: "He's a great player and I also wonder what position they'll use him in.

"I think he's more of a winger than a number ten, but I have the impression that Ajax wants to use him more as a number ten."

Former Saints coach Erwin Koeman also remarked: "I think he could easily play for a top six team in the Premier League.

"The only reason for this move I can see is that he wants his children to grow up in Holland."