The Dortmund captain has no intention of leaving so United are looking at his teammate Subotic instead.
Borussia Dortmund captain Mats Hummels has spoken openly about the fact he had no intention of joining Manchester United over the summer.
The Germany international stressed that whilst the Red Devils could have offered him more money, he is more concerned about becoming a club legend at the Signal Iduna Park.
United however still need defensive recruitment in January after a shaky start to the 2014/15 season and with Hummels unavailable they have instead turned their attention to his Dortmund teammate Neven Subotic, according to the Mirror.
Louis van Gaal is a keen admirer of the 25-year-old and believes Subotic has the required skills to come in and shore up the back line of the 13-time Premier League champions.
Other names such as Aston Villa skipper Ron Vlaar are being considered as well – with the centre-back having previously worked with van Gaal with the Netherlands national team – although the Serbia international is the preferred choice.
Subotic joined Dortmund from Mainz in the summer of 2008 and has since played 213 times for the club in all competitions, helping them to two Bundesliga titles and the 2013 Champions League final during that time.
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