Manchester United have reportedly made an initial enquiry to Bayern Munich regarding the availability of Thomas Muller in January.

The German striker is open to leaving the Allianz Arena in the next window after being reduced to just three starts in the Bundesliga so far this season.

United are in the market for a striker in January having left themselves short in attack following the club's decision to dispense with and fail to replace attacking duo Romelu Lukaku and Alexis Sanchez over the summer.

According to the Daily Mail, the Red Devils have made initial contact with Bayern ahead of potentially launching a bid for the German striker.

Muller has spent the entirety of his club career at Bayern, scoring 110 Bundesliga goals since making his senior debut in 2008.

Reports have claimed that United are in advanced discussions with Juventus to complete the signing of Mario Mandzukic in January.