Hertha Berlin midfielder Gojko Kacar remains in the sights of Manchester United.
The Daily Mail says United are reportedly tracking Hertha Berlin's Serbia midfielder.
However, the Premier League champions would face competition from AC Milan, Juventus and Wolfsburg.
Hertha, the Bundesliga's bottom-place club, are ready to listen for offers above £10million for the defensive midfielder, who can also fill in at centre half.
The 6ft, imposing player looks set to go to next summer's World Cup after winning a dozen caps since making his international debut in 2007.