The report states that the Premier League giants have agreed personal terms with Gündoğan and that United are close to announcing the transfer.
Bayern Munich pulled out of the race earlier this week while Barcelona have taken a step back after hearing the 24-year-old’s €12 million per season contract demands.
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However, Gündoğan has confirmed that he has held talks with Barcelona.
“Yes, we are negotiating. I have not taken any decision yet but I’m open to all possibilities.” Gündoğan told Marca when questioned about a possible move to Barcelona.
The Germany international rejected a contract extension deal with Dortmund and is expected to leave the Bundesliga outfit.
Gündoğan has five assists and three goals in 32 appearances for Dortmund despite spending much of the season out injured.