article_snippet.sent: Manchester United boss Louis van Gaal has identified Borussia Dortmund's Ilkay Gundogan as a long-term successor to Michael Carrick .
article_snippet.sent: Ilkay Gundogan has been watched extensively by Manchester United.
article_snippet.sent: Ilkay Gundogan has been watched extensively by United, who could make a move in this summer .
article_snippet.sent: Ilkay Gundogan's existing contract expires at the end of next season and Ilkay Gundogan is yet to sign a new deal.
highlights_snippet.sent: Ilkay Gundogan is seen as a successor to Michael Carrick in midfield .
  
highlights_snippet.sent: Manchester United boss Louis van Gaal feels Ilkay Gundogan can replicate 33-year-old Carrick's displays .